Same chapter3 marksDifficulty: Medium
What is polarisation, and what does it prove about the nature of light?
Wave Optics
3 marksDifficulty: Medium
State the conditions for sustained interference of light.
Original Khojo Papers practice question — not from a past board paper.
Answer
The two sources must be coherent, that is they must have a constant phase difference and the same frequency. They should be narrow and close together, of nearly equal amplitude, and the screen should be reasonably far away. Two independent sources cannot produce sustained interference.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
This is why a single source is divided in two in every interference experiment.
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