Same chapter3 marksDifficulty: Medium
What is polarisation, and what does it prove about the nature of light?
Wave Optics
3 marksDifficulty: Medium
Distinguish between interference and diffraction of light.
Original Khojo Papers practice question — not from a past board paper.
Answer
Interference arises from the superposition of waves from two coherent sources, and its fringes are of equal width and equal intensity. Diffraction arises from the superposition of secondary wavelets from different parts of the same wavefront, and its bands are of unequal width with a bright central maximum whose intensity falls away sharply on either side.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Both are consequences of the wave nature of light.
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