When a sound wave passes from air into water its
When a sound wave passes from air into water its
speed and frequency increases but its wavelength remains the same
speed and wavelength increases but its frequency remains the same
speed decreases
speed increases but its frequency and wavelength decreases
Correct answer is B
No explanation has been provided for this answer.
A voltage supply of 12V r.m.s. and frequency 90Hz is connected to a 4 ω resistor. Calculate th...
A piece of cork floating on water is acted upon by the forces of... ...
A lead bullet of mass 0.05 kg is fired with a speed of 200 m/s into a lead block of mass 0.95 k...
The fundamental frequency of vibration of a sonometer wire may be halved by ...
Which of the following statements about electric potential energy is not correct? ...