Question

on
Fill in the missing details in below table.
use
State type
of mirror or
lens used
(a)
(?)
(C)
(?)
State position, nature and size of
an image when object placed at
distance equal to its focal length
(b)
(?)
(d)
(?)
Rear view in vehicles
To observe minute parts of
watch by watch repairer​

Answer 1

Answer:

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Explanation:

(i)  Concave mirror is used in the headlights of vehicles as a reflector. Bulb is placed at the focus of concave mirror so the light rays coming from bulb are collected and after reflection we get a strong beam of light .

  (ii)  Convex mirror is used as rear view mirrors in vehicles , the other vehicles are always beyond the 2F of convex lens so we get a diminished and erect image of other vehicle on lens hence lens gives a larger field of view to us , and we can see more vehicles in lens .

Answer 2

Explanation:

a) convex mirror

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