Q39.A tuning fork arrangement (pair) produces 4 beats / sec with one fork of frequency 288cps. A little wax is placed on the unknown fork and it then produces 2 beats /sec. The frequency of the unknown fork is (1) 286 cps (2) 292 cps (3) 294 cps (4) 288 cps
What This Question Tests
This question tests the fundamental frequencies of open and closed organ pipes, requiring recall of the relevant formulas or understanding of their boundary conditions.
Concepts Tested
Formulas Used
f_open = v/2L
f_closed = v/4L
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📋 Question Details
- Chapter
- Waves & Sound
- Topic
- Organ pipes
- Year
- 2002
- Shift
- Unknown
- Q Number
- Q39
- Type
- MCQ
- NCERT Ref
- Class 11 Physics Ch 15: Waves
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