Which parameter remains unaltered during refraction of light?
(a) Velocity
(b) Amplitude
(c) Frequency
(d) Wavelength
WBBSE
Class X
Physical Science
Light – Reflection and Refraction
01 Mark
2025
(c) Frequency
Explanation
When light travels from one transparent medium to another, its frequency remains unchanged because it is determined by the source of light.
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