The frequency of sinusodial wave ---- y = 0.40cos [ 2000 t + 0.80 ] would be .....a) 1000 pie Hz.... RASA CLASSES ( ALAMBAGH LUCKNOW NEET JEE-MAINS ) 3,16 тыс. подписчиков Скачать
The frequency of sinusodial wave ---- y = 0.40cos [ 2000 t + 0.80 ] would be .....a) 1000 pie Hz.... Скачать
Which one of the following represents a wave ? a) y = A sin (wt - kx) ........................ Скачать
Two sound waves having a phase difference of 60 degree have path difference of ( lemdha is.........) Скачать
In a sinusoidal wave , the time required for a particular point to move from maximum displacement... Скачать
A wave travelling in positive X - direction with a = 0.2 m , velocity = 360 ms-1 and lemdha = 60.... Скачать
The equation of a sound wave is y = 0.0015 sin (62.4x + 316t). The wavelength of this wave is .... Скачать
The phase difference between waves , represented by --- ......................... Where x is ....... Скачать
The wave described by y = 0.25 sin ( 10pie x - 2pie t) . where x and y are in meters and t in ...... Скачать
A wave in a string has an amplitude of 2 cm. The wave travels in +ve direction of x axis with a ... Скачать
A wave travelling in the +ve x- direction having displacement along y- direction as 1m ............ Скачать
With the propagation of a longitudinal wave through a material medium , the quantities ............ Скачать
Two waves are represented by the equations y1 = asin(wt + kx +0.57)m and ........................ Скачать
Which one of the following statements is true ? a) Both light and sound waves can travel in ...... Скачать
An electromagnetic radiation of frequency n , wavelength lemdha , travelling with velocity ......... Скачать
The refractive index of water is 1.33 . What will be the speed of light in water ? ................. Скачать
The frequency of a light wave in a material is 2 x 10 to the power 14 Hz and wavelength is 5000..... Скачать
Which one of the following phenomena is not explained by Huygen's construction of wavefront ?....... Скачать
If the temperature of the sun is doubled , the rate of energy recieved on earth will be increased... Скачать
Heat is flowing through two cylindrical rods of the same material . The diameters of the rods ...... Скачать
A black body is at a temperature of 500 K . It emits energy at a rate which is proportional to ..... Скачать
The radiant energy from the sun , incident normally at the surface of earth is 20 kcal/m2 min....... Скачать
A black body has maximum wavelength lamda m at 2000 K . Its corresponding wavelength at 3000K....... Скачать
A cylindrical rod having temperature T1 and T2 at its end. The rate of flow of heat Q1 cal/sec...... Скачать
The Wien's displacement law express relation between ............................................... Скачать
Which of the following is best close to an ideal black body ? ........a) black lamp ................ Скачать
For a black body at temperature 727 degree C , its radiating power is 60 watt and temperature of.... Скачать
Consider two rods of same length and different specific heats (S1 , S2) , conductivities ........... Скачать
Consider a compound slab consisting of two different material having equal thickness and thermal.... Скачать
If lamda m dem=notes the wavelength at which the radiative emission from a black body at a.......... Скачать
Which of the following rods , ( given radius r and length l ) each made of the same material and ... Скачать
A black body at 1227 degree C emits radiations with maximum intensity at a wavelength of 5000....... Скачать
A black body is at 727 degree C . It emits energy at a rate which is proportional to ............... Скачать
The two ends of a rod of length L and a uniform cross-sectional area A are kept at two ............. Скачать
A black body at 227 degree C radius heat at the rate of 7 cals/cm2s. At a temperature of 727....... Скачать
Assuming the sun to have a spherical outer surface of radius r , radiating like a black body ....... Скачать
The total radiant energy per unit area , normal to the direction of incidence , received at a....... Скачать
A cylindrical metallic rod in thermal contact with two reservoirs of heat at its two ends .......... Скачать
A slab of stone of area 0.36 m square and thickness 0.1 m is exposed on the lower surface to ....... Скачать
If the radius of a star is R and it acts as a black body , what would be the temperature of the ... Скачать
Two metal rods 1 and 2 of same lengths have same temperature difference between their ends . ....... Скачать
A piece of iron is heated in aflame . It first becomes dull red then becomes reddish yellow and..... Скачать
The two ends of a metal rod are maintained at temperature 100 degree C and 110 degree C . The ...... Скачать
A black body is at a temperature of 5760 K . The energy of radiation emitted by the body at ........ Скачать
A spherical black body with a radius of 12cm radiates 450 watt power at 500 K . If the radius ...... Скачать
Two rods A and B of different materials are welded together as shown in figure . Their thermal...... Скачать
The Power radiated by black body is p and it radiates maximum energy at wavelength , lendha0 . ..... Скачать
10 gm of ice cube at 0 degree C are released in a tumbler ( water equivalent 55 g ) at.............. Скачать
If 1 g of steam is mixed with 1 g of ice , then resultant temperature of the mixture is -- ......... Скачать
Liquid oxygen at 50K is heated to 300K at constant pressure of 1 atm. The ratio of heating is ...... Скачать
Steam at 100 degree C is passed into 20g of water at 10 degree C . When water acquires a ........... Скачать
A piece of ice falls from a height h so that it melts completely . Only one - quarter of heat ...... Скачать
Two identical bodies are made of a material for which the heat capacity increases with temperature.. Скачать
Thermal capacity of 40 g of aluminium ( s = 0.2 cal/g K) is ----a) 168 J/K b) 627 J/K.............. Скачать
The quantities of heat required to raise the temperature of two solid copper spheres of radii ...... Скачать
The density of water at 20degreeC is 998 kg/m3 and 40degree C is 992 kg/m3 . The coefficient of .... Скачать
the value of coefficient of volume expansion of glycerin is 5 x 10to the power -4 K-1 ............. Скачать
Coefficient of linear expansion of brass and steel rods are alpha1 and alpha2. Lengths of brass..... Скачать
A cell of emf 4V and internal resistance 0.5 om is connected to a 7.5 om external resistance ....... Скачать
The magnitude and direction of the current in the following circuit is --.......................... Скачать
10 resistors , each of resistance R are connected in series to a battery of emf E and negligible.... Скачать
A copper rod of 88 cm and an aluminium rod of unknown length have their increase in length ......... Скачать
Mercury thermometer can be used to measure temperature upto--a) 260 degree b) 100 degree .......... Скачать
One a new scale of temperature ( which is linear) and called the W scale ,the freezing and ....... Скачать
System of particles & Rotational motion lecture 5 by Rakesh yadav sir for jee main & advanced Скачать
Which of the following process is reversible ? a) Transfer of heat by conduction b) Transfer........ Скачать
A thermodynamic process is shown in the figure . The pressure and volumes corresponding to some..... Скачать
A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA ..... Скачать
An ideal gas A and a real gas B have their volumes increased from V to 2V under isothermal ......... Скачать
In an adiabatic change , the pressure and temperature of a monoatomic gas are related as P ......... Скачать
A diatomic gas initially at 18degree C is compressed adiabatically to one eighth of its original.... Скачать
An ideal gas , undergoing adiabatic change , has Which of the following pressure temperature ...... Скачать
A sample of gas expand from volume 1 to V2 amount of work done by the gas is greatest , when the ... Скачать
We consider a thermodynamic system . If deltha U represents the increase in its internal energy .... Скачать
An ideal gas at 27degree C is compressed adiabatically to 8/27 of its original volume . The rise.... Скачать
One mole of an ideal gas at an initial temperature of TK does 6R joule of work adiabatically....... Скачать
If Q,E and W denote respectively the heat added . change in internal energy and the work done in.... Скачать
In thermodynamic processes which of the following statement is not true ? .......................... Скачать
A monoatomic gas at pressure P1 and volume V1 is compressed adiabatically to 1/8th of its original.. Скачать
During an adiabatic process of a gas is found to be proportional to the cube of its temperature .... Скачать
If deltha U and deltha W represent the increase in internal energy and work done by the system..... Скачать
A mass od diatomic gas ( y = 1.4) at a pressure of 2 atmosphere is compressed adiabatically so ..... Скачать
During an isothermal expansion , a confined ideal gas does -150 J to work against its surrounding .. Скачать
One mole of an ideal gas goes from an initial state A to final state B via two process :............ Скачать
An ideal gas goes from state A to state B via three different process as indicated in the.......... Скачать
A thermodynamic system is taken through the cycle ABCD as shown in figure . Heat rejected by ...... Скачать
Which of the following relations does not given the equation of an adiabatic process , where ....... Скачать
A gas is taken through the cycle A ,B , C ,A , as shown . What is the net work done by the gas ?... Скачать
A thermodynamic system undergoes cyclic process ABCDA as shown in figure . The work done by the .... Скачать
Figure below sows two paths that may be taken by a gas to go from a state A to a state A to a....... Скачать
Figure below slow two paths that may be taken by a gas to go from a state A to a state C . ......... Скачать
System of particles & Rotational motion lecture 4 by Rakesh yadav sir for jee main & advanced Скачать
A ideal gas is compressed to half its initial volume by means of several process ............ ...... Скачать
A gas is compressed isothermal to half its initial volume . The same gas is compressed separately... Скачать
One mole of an ideal monoatomic gas undergoes a process described by the equation PV3 = constant .. Скачать
Thermodynamics process are indicated in the following diagram ..................................... Скачать
The volume(V) of amonatomic gas varies with its temperature (T) , as shown in the graph. The ...... Скачать
In which of the following process , heat is neither absorbed nor released by a system ? ........... Скачать
Two cylinders A and B of equal capacity are connected to each other via a stopcock . A contains..... Скачать
Which of the following is not thermodynamical function ? a) Enthalpy b) Work done................. Скачать
A cylinder contains hydrogen gas at pressure of 249 kPa and temperature 27dergee C .Its density .... Скачать
One mole of an ideal gas requires 207 J heat to rise the temperature by 10 k when heated at ........ Скачать
If the ratio of specific heat of a gas at constant pressure to that at constant volume is .......... Скачать
If cp and cv denote the specific heats per unit mass of an ideal gas of molecular weight M , then .. Скачать
One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown in ... Скачать
1st law of thermodynamics is consequence of conservation of a) work b) energy c) heat d) all of ... Скачать
110 joule of heat is added to a gaseous system whose internal energy is 40 J , then the amount ..... Скачать
The internal energy change in a system that the absorbed 2 kcal of heat and done 500J of work is ... Скачать
A system is taken from state a to state c by two path adc and abc as shown in the figure . The...... Скачать
A sample of 0.1 g of water at 100 degree C and normal pressure ( 1.013 x 10 to the power 5 Nm-2).... Скачать
A simple pendulum oscillating in air has a period of root of 3 s . If it is completely immersed .... Скачать
System of particles & Rotational motion lecture 3 by Rakesh yadav sir for jee main & advanced Скачать
the potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched ...... Скачать
The x-t graph of a particle performing SHM is shown in the figure . The acceleration of the......... Скачать
Two pendulums of length 121cm and 100 cm start vibrating in phase . At some instant , the two are .. Скачать
A spring is stretched by 5 cm by a force 10 N . The time period of the oscillations when a mass..... Скачать
A body is executing SHM with frequency n , the frequency of its potential energy is --a) n b) 2n... Скачать
A mass m is suspended from the two couple springs connected in series . The force constant for...... Скачать
A simple pendulum is suspended from the roof of a trolley which moves in a horizontal direction.... Скачать
A seconds pendulum is mounted in a rocket . Its period of oscillation will decreases when rocket ... Скачать
A body of mass 3 kg hangs from a spring and oscillates with a time period of 2pie second . If ...... Скачать
A simple pendulum with a bob of mass m oscillates from A to C and back to A such that PB is H....... Скачать
If the length of a simple pendulum is increased by 2% than the time period ......................... Скачать
A mass m is vertically suspended from a spring of negligible mass ; the system oscillates with a ... Скачать
Two simple pendulum of length 5 m and 20 m respectively are given small linear displacement ........ Скачать
Time period of a simple pendulum is 2 sec . If its length is increased by 4 times , then its time .. Скачать
The bob of simple pendulum having length l , is displacement from mean position to an angular....... Скачать
Two masses MA and MB are hung from two string of length lA and lB respectively . They are executing. Скачать
A mass is suspended separately by two different spring in successive order then time periods is .... Скачать
The time period of a mass suspended from a spring is T . If the spring is cut into four equal ...... Скачать
Two springs of spring constant k1 and k2 are joined in series . The effective spring constant of ... Скачать
A rectangular block of mass m and area of cross-section A floats in a liquid of density p. If it ... Скачать
System of particles & Rotational motion lecture 2 by Rakesh yadav sir for jee main & advanced Скачать
A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown .. Скачать
A simple pendulum performs S.H.M. about x = 0 with an amplitude a and time period T . The speed .... Скачать
The period of oscillation of mass M suspended from a spring of negligible mass is T . If along...... Скачать
A body of mass m is attached to the lower end of a spring whose upper end is fixe . The spring has . Скачать
A spring of force constant k is cut into lengths of ratio 1:2:3 . They are connected in series ..... Скачать
A pendulum is hung from the roof of a sufficiently high building and is moving freely to and ....... Скачать
The angular velocity and the amplitude of a simple pendulum is w and a respectively . At a ........ Скачать
A body executing S.H.M. with an amplitude A. At what displacement from the mean position is the .... Скачать
A loaded vertical spring executing S.H.M. with a time period of 4 sec . The difference between...... Скачать
In a simple harmonic motion , when the displacement is one - half the amplitude , what fraction .... Скачать
A linear harmonic oscillator of force constant 2 x 10 to the power 6 N/m and displacement 0.01m..... Скачать
Displacement between maximum potential energy position and maximum kinetic energy position ......... Скачать
The total energy of particle performing SHM depends on ---.......................................... Скачать
A particle of mass m oscillates with SHM between points x1 and x2 , the equilibrium position ....... Скачать
The potential energy of a Simple harmonic oscillator when the particle is half way to its end ...... Скачать
The particle executing SHM has a kinetic energy K0cos2wt . The maximum values of the potential ..... Скачать
A particle of mass m is released from rest and follows a parabolic path as shown . Assuming that.... Скачать
Which one of the following equation of motion represents SHM ? .................................... Скачать
A body is executing SHM. When the displacements from the mean position is 4 cm and 5 cm , the ...... Скачать
If a Simple harmonic oscillator has got a displacement of 0.02 m and acceleration equal to 2.0 .... Скачать
System of particles & Rotational motion lecture 1 by Rakesh yadav sir for jee main & advanced Скачать
A particle starts with SHM from the mean position as shown in the figure . Its amplitude is A and.. Скачать
Which one of the following statements is true for the speed v and the acceleration a of a ......... Скачать
A particle executing SHM of amplitude 5 cm has maximum speed of 3.14 cm/s. The frequency of its..... Скачать
The phase difference between the instantaneous velocity and acceleration of a particle executing ... Скачать
A point perform SHM oscillation of period T and the equation is given by x = asin(wt + pie/6)..... Скачать
Two SHM of angular frequency 100 and 1000 rad s-1 have the same displacement amplitude . The........ Скачать
A particle of mass m oscillates along x - axis according to equation x = asinwt . The nature of .... Скачать
The oscillation of a body on a smooth horizontal surface is represented by the equation , X = ...... Скачать
A particle is executing SHM , along a straight line in velocities at distance x1 and x2 from the... Скачать
A particle is executing a simple harmonic motion . Its maximum acceleration is alpha and maximum.... Скачать
A particle executes linear SHM with an amplitude of 3 cm . When the particle is at 2 cm from the.... Скачать
Average velocity of a particle executing SHM in one complete vibration is -- ..................... Скачать
The phase difference between displacement and acceleration of a particle in a simple harmonic ...... Скачать
![The frequency of sinusodial wave ---- y = 0.40cos [ 2000 t + 0.80 ] would be .....a) 1000 pie Hz....](https://s2.save4k.su/pic/n6e7mmKnS0c/mqdefault.jpg)
