Question

If an object is placed at 10cm infront of a convex mirror of radius of curvature 20cm
the magnification is
A)2
B)1
C) 1/2
D)O
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Answer 1

Answer:

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Answer 2

Given:

u= -10 cm

r= 20 cm

mirror= convex

R= 2f

20/2 = f

10 cm = f

1/f = 1/v + 1/u

1/10= 1/v +(-1/10)

1/10 = 1/v - 1/10

1/10 + 1/10 = 1/v

2/20 = 1/v

10 cm = v

m= - v/u

m = -(-10/10)

m= 1