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2020 MHT-CET PCM SET - 03 — MHT - CET STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMHT - CET2020 MHT-CET PCM SET - 031 Mark
MCQ
A tuning fork 'A' produces 5 beats per second with a tuning fork of frequency 480 Hz. When a little wax is stuck to a prong of fork A, the number of beats heard per second becomes 2. What is the frequency of tuning fork A before the wax is stuck to it?
  • A
    475 Hz
  • ✓
    485 Hz
  • C
    478 Hz
  • D
    482 Hz
✓

Answer

Correct option: B.
485 Hz
B

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