10. Light Reflection and Refraction

10. Light Reflection and Refraction

8 Maths Exercise Solutions

Define the principal focus of a concave mirror.
10.2 Spherical Mirrors, Question No.1
Define the principal focus of a concave mirror.
The radius of curvature of a spherical mirror is cm. What is its focal length?
10.2 Spherical Mirrors, Question No.2
The radius of curvature of a spherical mirror is cm. What is its focal length?
Name a mirror that can give an erect and enlarged image of an object.
10.2 Spherical Mirrors, Question No.3
Name a mirror that can give an erect and enlarged image of an object.
Why do we prefer a convex mirror as a rear-view mirror in vehicles?
10.2 Spherical Mirrors, Question No.4
Why do we prefer a convex mirror as a rear-view mirror in vehicles?
A convex mirror used for rear-view on an automobile has a radius of curvature of . If a bus is located at from this mirror, find the position, nature and size of the image.
10.2 Spherical Mirrors, Question No.5
A convex mirror used for rear-view on an automobile has a radius of curvature of . If a bus is located at from this mirror, find the position, nature and size of the image.
An object, in size, is placed at in front of a concave mirror of focal length At what distance from the mirror should a screen be placed in order to obtain a sharp image? Find the nature and the size of the image.
10.2 Spherical Mirrors, Question No.6
An object, in size, is placed at in front of a concave mirror of focal length At what distance from the mirror should a screen be placed in order to obtain a sharp image? Find the nature and the size of the image.
Find the focal length of a convex mirror whose radius of curvature is .
10.2 Spherical Mirrors, Question No.7
Find the focal length of a convex mirror whose radius of curvature is .
A concave mirror produces three times magnified(enlarged)real image of an object placed at in front of it. Where is the image located?
10.2 Spherical Mirrors, Question No.8
A concave mirror produces three times magnified(enlarged)real image of an object placed at in front of it. Where is the image located?