Prove that for a concave mirror, the radius of curvature is twice its focal length.

Important Questions on Light - Reflection and Refraction

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1B>Q 6

What are the value of (i) angle of incidence (ii) angle of reflection for normal incidence on a plane mirror surface?

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1B>Q 7

What is the minimum number of rays required for locating the image formed by a concave mirror for an object. Draw a ray diagram to show the formation of image by a concave mirror.

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1B>Q 8

Draw a ray diagram to show the (i) position and (ii) nature of the image formed when an object is placed between focus F and pole P of a concave mirror.

MEDIUM

10th CBSE

IMPORTANT

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

Why is a convex mirror used as a rear view mirror in the automobiles? Illustrate your answer.

EASY

10th CBSE

IMPORTANT

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

You are provided a convex mirror, a concave mirror and a plane mirror. How will you distinguish between them, without touching them or using any other apparatus?

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1B>Q 3

Identify the device used as a spherical mirror or lens in the following cases, when the image formed is virtual and erect in each case.
Object is placed between the device and its focus, image formed is enlarged and behind it.

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1B>Q 3

Identify the device used as a spherical mirror or lens in the following cases, when the image formed is virtual and erect in each case.

Object is placed between the focus and device, image formed is enlarged and on the same side as that of the object.

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>EXERCISE - 1B>Q 3

Identify the device used as a spherical mirror or lens in the following cases, when the image formed is virtual and erect in each case.

Object is placed between infinity and device, image formed is diminished and between focus and optical centre on the same side as the object.