Physics Quiz for Class 10

The number of images observable between two parallel mirror is

• 6

• Infinite

• 2

• 4

The image of our face in a plane mirror is

• Real

• Magnified

• Diminished

• None of these

A boy is standing at a distance of 3 m in front of a plane mirror. If the boy moves 1 m backward, the distance between the image and the boy is

• 2 m

• 4 m

• 6 m

• None of these

If a mirror has a focal length of -20 cm, it is a

• convex mirror

• concave mirror

• plane mirror

• none of these

In case of a virtual and erect image, the magnification of a mirror is

• Positive

• Negative

• Unity

• Infinite

In order to have a very wide field of view, the mirror used in cars is

• Convex

• Plane

• Concave

• None of these

When an object is placed between the focus and the pole of a concave mirror, the image formed is

• real, inverted and small

• real, inverted and same

• real, inverted and enlarged

• virtual, erect and enlarged

When an object is at infinity from a concave mirror, the image formed is

• at the focus

• virtual and erect

• highly enlarged

• none of these

When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. The nature of the image is

• real

• inverted

• virtual and inverted

• virtual and erect

The mirror used by dentists to concentrate light on the tooth to be examined is a

• concave mirror

• plane or concave mirror

• convex mirror

• plane mirror