Q39.An observer moves towards a stationary source of sound, with a velocity one fifth of the velocity of sound. What is the percentage increase in the apparent frequency? (1) zero (2) 0.5% (3) 5% (4) 20%
What This Question Tests
This question directly applies the Doppler effect formula for an observer moving towards a stationary source to calculate the percentage increase in apparent frequency.
Concepts Tested
Formulas Used
f' = f [(v + v_o) / (v - v_s)]
📚 NCERT Sections This Tests
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📋 Question Details
- Chapter
- Waves & Sound
- Topic
- Doppler Effect
- Year
- 2005
- Shift
- Unknown
- Q Number
- Q39
- Type
- MCQ
- NCERT Ref
- Class 11 Physics Ch 15: Waves
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