Question

1. Definition:Refraction of light.

2.Laws of Refraction (Snell's law) 3.Refraction through a rectangular glass slab

4. Refractive index, numericals based on ref. index

5.Rules for image formation in convex and concave lenses

6.tracing the image for different positions of objects in convex and concave lenses

7.sign convention, magnification. 8.power of a lens 9.rfor Assertion and reasoning qns refer to the 2 sample papers sent already.

10. practice the ray diagrams.​

Answer 1

ans1) * the incident ray,the normal and the refracted ray at a point of incident all lie in the same plane .

*the ratio of the sine of the angles of incidence to the sine of the angle of refraction is a constant .

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