Same chapter3 marksDifficulty: Medium
Two tuning forks of frequencies 256 Hz and 260 Hz are sounded together. Find the beat frequency.
Oscillations and Waves
3 marksDifficulty: Medium
Distinguish between longitudinal and transverse waves, with one example of each.
Original Khojo Papers practice question — not from a past board paper.
Answer
In a longitudinal wave the particles of the medium vibrate along the direction in which the wave travels, producing compressions and rarefactions; sound in air is an example. In a transverse wave the particles vibrate at right angles to the direction of travel, producing crests and troughs; a wave on a stretched string is an example.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Only transverse waves can be polarised.
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