CLASS 7 LIGHT

Latha is observing her image in a plane mirror. The distance between the mirror and her image is 6 m. If she moves 2m towards the mirror then the distance between latha and her image will be

• 8 m

• 4 m

• 10 m

• 5 m

Images that can't be captured on a screen are called

• Real image

• Virtual image

• Proper image

• Imaginary image

Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size, whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli respectively are

• plane mirror and concave mirror

• convex mirror and plane mirror

• plane mirror and convex mirror

• concave mirror and convex mirror

Which of the following always diverge light rays?

• Convex mirror and plane mirror

• Concave lens and convex mirror

• Concave mirror and convex lens

• Concave lens and convex mirror

An erect and enlarged image can be formed by

• (a) only a convex mirror

• (b) only a concave mirror

• (c) only a plane mirror

• (d) Both convex and concave mirrors

The path of the light is

(a) always a straight line

(b) a curved line

(c) a zig-zag line

(d) depends on the medium

• a

• b

• c

• d

The inner surface of a steel spoon acts as a ………………….. mirror.

• plane mirror

• convex mirror

• concave mirror

• convex lens

The image which is obtained on a screen

• upright

• impression

• virtual image

• real image

Convex lens is also called as

• Diverging lens

• Converging lens

• Plane lens

• Power lens

When we stand in front of our dressing table, our left hand seems to be right and right seems to be left. This is called

• mirage

• Up -side down phenomenon

• Left-right confusion

• Lateral inversion