Q12 of 24 Page 82

What type of mirror is used as a side mirror in a scooter? Why is this type of mirror chosen?

Convex mirrors are used as side mirror in the scooters.

it is because a convex mirror can form images of object spread over large area , so the images help the driver to see traffic behind them and also prevents them from any accident or damage to vehicle.


More from this chapter

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10

Fill in the blanks:

(a) The inner surface of a steel spoon acts as a __________ mirror.


(b) The outer surface of a flat steel plate acts as a ___________ mirror.


(c) The outer shining surface of a round bottom steel bowl acts as a __________ mirror.


(d) The inner surface of the reflector of a torch acts as a __________ mirror.

 11

State whether the following statements are True or False.

(a) A concave lens can be used to produce an enlarged and erect image.


(b) A convex lens always produces a real image.


(c) The sides of an object and its image formed by a concave mirror are always interchanged.


(d) An object can be seen only if it emits light.

 13

Observe the figures given as Figure 15.1 carefully. Fig 15.1


The given figures show the path of light through lenses of two different types, represented by rectangular boxes A and B. What is the nature of lenses A and B?

 14

Boojho made light from a laser torch to fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.