CBSE 2024-25 Competency-Based Questions With Answers: The Central Board of Secondary Education (CBSE) has recently released a set of competency-based questions for Chapter 9, Light – Reflection and ...
Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...
The first law of refraction states that the incident rays, refracted rays, and the normal to the interface at the point of incidence, all lie in the same plane. The ratio of the sine of the angle of ...
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