Waves Test - 18...

Two sounding bodies producing progressive waves are given by
y₁ = 4 sin 400πt and y₂ = 3 sin 4047πt
One situated very near to the ears of a person, who will hear

Beats are produced by two waves given by, y₁ = a sin 2000πt and y₂ = a sin 2008πt. The number of beats heard per second is

Two tuning forks of frequency v₁ and v₂ produces n beats per second. If v₂ and v are known, v₁may be given by

Two tuning forks P and Q when set vibrating give 4 beats/s. If a prong of the fork P is filed the beats are reduced to 2s ^-1. What is frequency of P, if that of Q is 250 Hz?

A set of 24 tuning forks are so arranged that each gives 6 beats/s with the previous one. If the frequency of the last tuning fork is double that of the first, frequency of the second tuning fork is

When two tuning forks (fork 1 and fork 2) are sounded simultaneously, 4 beats/s are heard. Now, some tape is attached on the prong of the fork 2. When the tuning forks are sounded again, 6 beats/s are heard. If the frequency of fork 1 is 200 Hz, then what was the original frequency of fork 2?

A pipe of 30 cm long and open at both the ends produces harmonics. Which harmonic mode of pipe resonates a 1.1 kHz source? Given, speed of sound in air = 330 ms ^-1.

As shown in figure, a sound wave of wavelength 2.28 m enters the tube at S. Find the smallest radius of the circular path to hear minimum sound at D.

A closed organ pipe and an open organ pipe of same length produce 2 beats/s while vibrating in their fundamental modes. The length of the open organ pipe is halved and that of closed pipe is doubled. Then the number of beats produced per second while vibrating in the fundamental mode is

A student performed the experiment to measure the speed of sound in air using resonance air-column method. Two resonances in the air column were obtained by lowering the water level. The resonance with the shorter air-column is the first resonance and that with the longer air-column is the second resonance. Then,