Question 3 of 142
A siren emitting frequency approaches a stationary listener with speed (speed of sound ). Observed frequency is:
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Answer: (B)
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Waves
JEE Main level, single correct, medium
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More Physics practice
- WavesAn open organ pipe of length vibrates in its fundamental mode. The wavelength of the sound wave produced is:
- WavesA string of length fixed at both ends vibrates in its second overtone (3rd harmonic). The number of nodes in the standing wave is:
- WavesTwo strings having linear densities and, and lengths and respectively are joined. Free ends of and are tied to two rigid supports and , respectively creating a tension of 500 N in the wire. Two identical pulses, sent from and ends, take time and , respectively, to reach the joint. The ratio is :
- WavesThe equation of wave is given by , where and are in and in . The speed of the wave is _______ .
- WavesA transverse harmonic wave on a string is given by where and are in and in . The wave velocity is _________ .
- WavesA steel wire with mass per unit length is under tension of . The speed of transverse waves in the wire will be:
JEE Main Physics practice question on Waves, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.