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A tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats with another source of 268 Hz. Then x equals to
Options
(a) 256 Hz
(b) 260 Hz
(c) 264 Hz
(d) 268 Hz
Correct Answer:
260 Hz
Explanation:
Frequency of tuning fork be x.
.·. x = 256 ± 4 = 260 or 252 Hz.
x = 268 ± 8 = 276 Hz or 260 Hz
.·. x =260 Hz.
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Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The current through an inductor changes from 3 A to 2 A is 1 m/s. If induced e.m.f.
- A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter
- A train moving at a speed of 220 ms⁻¹ towards a stationary object
- The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
- The magnetic flux linked with a circuit of resistance 100Ω increases from 10 to 60 Wb.
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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