Question

State type
of mirror or
lens used
State position, nature and size of
an image when object placed at
distance equal to its focal length.
Rear View in vehicles
(C)
To observe minute parts of
watch by walch repairer​

Answer 1

Answer:

Concave mirror is used to observe minute parts of watch by watch repairer.

If an object is placed at focus of a concave mirror, the position of image will be at infinity and its nature will be real and inverted and its size will be highly diminished.

Convex mirror is used for rear view in vehicles.

If an object is placed at focus of a convex mirror, the position of image will be at infinity and its nature will be virtual and erect and its size will be highly diminished.

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Answer 2

Answer:

hope these diagrams will help u to understand