MEDIUM
10th CBSE
IMPORTANT
Earn 100

A 3 cm-high object is kept at 20 cm from a concave mirror. If a real image is formed at 50 cm from the mirror, find the focal length of the mirror and the image size.

Important Questions on Light - Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 37
A concave mirror forms a real image of height 8 cm of an object placed at a distance of 30 cm from the mirror. If the height of the object is 2 cm, find the position of the image and the focal length of the mirror.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 38
A 2 cm-high object is placed at a distance of 8 cm from a converging mirror. If the image produced is virtual and of 3 cm height, find the position of image and the focal length of the mirror. Draw a ray diagram to illustrate the situation.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 39
At what distance from a converging mirror of focal length 8 cm should an object 3 cm long be kept to get an erect image of  9 cm long?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 40
A 2 cm tall object is placed in front of a concave mirror of focal length 20 cm, at a distance of 16 cm from it. Find the position, nature and size of the image formed.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 41
A concave mirror forms a real image three times the size of an object placed at a distance of 30 cm from it. What is the focal length of the mirror? At what distance should the object be placed in front of the same mirror to produce a virtual image three times the size of the object?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 42
At what distance should an object be placed from the pole of a converging mirror of focal length 16 cm to form a real image that is half the size of the object? 
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 43
The magnification produced is - 0.2 when an object is placed at a distance of 100 cm from a converging mirror. Where should the object be placed to get a magnification of -0.5 ?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 44
An object is placed 30 cm from a convex mirror. Its image is formed 18 cm from the mirror. What are the focal length of the mirror and the magnification produced?