Prove that if a ray enters a rectangular glass slab obliquely and emerges from the opposite face, the emergent ray will be parallel to the incident ray.

Important Questions on Light - Reflection and Refraction

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1C>Q 12

An object

5 cm

high is placed

20 cm

in front of a concave mirror of focal length

15 cm

. At what distance from the mirror, should a screen be placed to obtain a sharp image? Calculate the size of the image formed.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1C>Q 13

State Snell's law of refraction of light.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1C>Q 13

A transparent medium A floats on another transparent medium B. When a ray of light travels obliquely from A into B, the refracted ray bends away from the normal. Which of the two media A and B is optically denser and why?

HARD

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1C>Q 1

Write the laws of refraction. Explain the same with the help of a ray diagram, when a ray of light passes through a rectangular glass slab.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1C>Q 2

A ray of light incident obliquely on the face of a rectangular glass block placed in air emerges from the opposite face parallel to the incident ray. State two factors on which lateral displacement of emergent ray depends on the emergent ray.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>Practice Problems : 1>Q 1

An object when placed in front of a convex lens formed a real image of