Question

1)To observe a minute parts watch by watch repairer i) State the type of mirror or lense used.(c)( ?) (ii) State the position ,nature and size of an image when object placed at distance equal to its focal length (d) ( ?)​

Answer 1

Answer:

(i) concave mirror and convex lens

(ii) in the case of mirror ;

position : the image will be formed at infinity

nature : real and inverted

size : enlarged size

and in the case of lens ;

position : the image will be formed at F2 on the other side of the lens

nature : real and inverted

size : same size

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