Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 2002
Exam
JEE Main
Year
2002
Subject
Physics
Chapter
Waves and Sound

JEE Main 2002 · Physics · Waves and Sound

A tuning fork arrangement (pair) produces 4 beats / sec with one...

A tuning fork arrangement (pair) produces 4 beats / sec with one fork of frequency 288cps288 \mathrm{cps}. A little wax is placed on the unknown fork and it then produces 2 beats /sec. The frequency of the unknown fork is

Options

  1. A286 cps
  2. B292 cps
  3. C294 cps
  4. D288 cps

Correct answer

B. 292 cps

Step-by-step solution

The fact that placing wax decreases the frequency of the unknown fork and also the beat frequency states that the unknown fork is of higher frequency. n-288=4 \Rightarrow n=292 cps\mathrm{cps}
Practice Waves and Sound on Quantrex Academy →

More from Waves and Sound

List-I shows four configurations made of straight and semi-circular narrow tubes… JEE Advanced 2026A transverse wave on a string is described by y = 3 (36t + 0.018x + π/4) , where x, y are… JEE Main 2026The equation of a plane progressive wave is given by y = 5 π(200t - (x)/(150)) where x… JEE Main 2026The speed of a longitudinal wave in a metallic bar is 400 ~m / s . If the density and… JEE Main 2026Two tuning forks A and B are sounded together giving rise to 8 beats in 2 s. When fork A… JEE Main 2026A point source is kept at the center of a spherically enclosed detector. If the volume of… JEE Main 2026The fifth harmonic of a closed organ pipe is found to be in unison with the first… JEE Main 2026The velocity of sound in air is doubled when the temperature is raised from 0^ ∘ C to α^… JEE Main 2026 Full Waves and Sound list All JEE Main PYQs