MEDIUM
10th CBSE
IMPORTANT
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What is meant by power of a lens? What does its sign (+ ve or -ve) indicate? State its SI unit. How is it related to the focal length of a lens?

Important Questions on Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>Practice Exercise 4D>Q 11
Draw ray diagrams to show the formation of three times magnified (a) real and (b) virtual image of an object by a converging lens. Mark the positions of O, F and 2F in each diagram.
EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 1
The image of a distant object is obtained on a screen by using a concave mirror. The focal length of the mirror is measured by the distance between
EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 2

The focal length of the concave mirror in the experimental set up shown below is:

Question Image

EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 3
If a laser beam is allowed to fall along the principal axis of a concave mirror, the ray will:
EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 4
The correct ray diagram is
EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 5
If R is the radius of curvature of a mirror and f is its focal length then
EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 6
The image formed by a concave mirror is
EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 7
A parallel beam of light after reflection from a mirror converges at a point. The mirror is: