A body vibrating with a certain frequency sends waves of wavelength 15 cm in a medium A and 20 cm in medium B. If `vv` of waves in A is `120 ms^-1`. That in B will be

A body sends waves 100mm long through medium A and 0.25m long in medium B. If the velocity of waves in medium A is 80cms^(-1) , calculate the velocity of waves in medium B.

Two sound waves of wavelength 1 m and 1.02 m produces 16 beats in 2 s in a medium then the velocity of the sound in that medium is

If a wave of wavelength lambda is travelling in a medium with velocity V, then its frequency is

Two waves of wavelength 40 cm and 42 cm produce 15 beats s^(-1) . The velocity of sound will be

There are two waves having wavelength 100 cm and 101 cm and same velocity 303 ms^(-1) . The beat frequency is

Two waves of wavelengths 99 cm and 100 cm produce 4 beats per second. Velocity of sound in the medium is

A sound wave travelling with a velocity V in a medium A reaches a point on the interface of medium A and medium B . If the velocity in the medium B be 2 V , then the angle of incidence for total internal reflection of the wave will be greater than:

A light wave has a frequency of 4xx10^(14)Hz and a wavelength of 5xx10^(-7) meters in a medium. The refractive index of the medium is