Same chapter3 marksDifficulty: Medium
Why does a coin at the bottom of a beaker of water appear to be raised?
Refraction of Light at Plane Surfaces
1 markDifficulty: Medium
When a ray of light passes from air into glass, its:
- afrequency changes
- bwavelength and speed change but the frequency stays the same
- cspeed stays the same
- dcolour changes
Original Khojo Papers practice question — not from a past board paper.
Answer
wavelength and speed change but the frequency stays the same
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The frequency is set by the source, so when the speed falls the wavelength must fall in the same proportion.
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