Question

11. The focal length of convex miror is 15 cm. An object is placed on its principal axis 20 cm apart from the pole. Find the position of image of the object.​

Answer 1

Answer:

V= UF/(U-F). U= 20cm F = 15cm

V= 20*15/(20–15) =+60cm

Magnification M = -(V/U) = - 60/20 =- 3

So V=60cm, virtual inverted and enlarged image will be formed behind the mirror at a distance of 60cm

Answer 2

Answer:

1/f= 1/u+1/v

1/15=1/20+1/v

1/15-1/20=1/v

1/60=1/v

.•. v=60 ( .•. means THEREFORE)

Explanation:

f= FOCAL LENGTH

u= DISTANCE OF OBJECT FROM POLE

v= DISTANCE OF IMAGE FORMED

PLZ MARK IT AS BRAINLIEST

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