Reflection from plane and spherical mirrors, mirror formula, refraction, refractive index and lens formula.
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Q1 · Light — Reflection and Refraction · MEDIUM
A ray of light traveling in air enters a transparent medium at an angle of incidence of 60°. If the angle of refraction is 30°, what is the refractive index of the medium?
Q2 · Light — Reflection and Refraction · EASY
A concave mirror has a focal length of 15 cm. An object is placed 30 cm in front of the mirror. What is the position of the image formed?
Q3 · Light — Reflection and Refraction · HARD
A ray of light traveling in air enters a glass slab at an angle of incidence of 60°. If the refractive index of glass is 1.5, what is the angle of refraction inside the glass? (sin 60° = 0.866, sin 35° = 0.574)