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qUESTIONS

The wave described by y = 0.25 sin(10лx-2nt) where x and y are in meters and t in seconds, is a wave travelling along the

The wave function (in SI unit) for a light wave is is given as Y(x, t) = 103 sin л(3×106x-9×1014) The frequency of the wave is equal to

A progressive wave travelling in positive x – direction given by y = a cos(kx – wt) meets a denser surface at x = 0, t=0. The reflected wave is then given by

A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points P and Q are at a distance of 4 m and 9 m respectively from the source. The ratio of amplitudes of the waves at P and Q is

The two interfering waves have intensities in the ratio 9: 4. The ratio of intensities of maxima and minima in the interference pattern will be

A point source emits sound equally in all directions in a non- absorbing medium, Two points P and Q are at distance of 2m and 3 m respectively from the source. The ratio of the intensities of the waves at P and Q is

Two waves are represented by y1 = 4 sin 404πt and y2 = 3 sin 400лt. Then

Two periodic waves of intensities I and I2 pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is

Question: Six moles of an ideal gas performs a cycle shown in figure. If the temperatures are 𝑇 𝐴 = 600 𝐾 T A =600K, 𝑇 𝐵 = 800 𝐾 T B =800K, 𝑇 𝐶 = 2200 𝐾 T C =2200K and 𝑇 𝐷 = 1200 𝐾 T D =1200K, the work done per cycle is

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