Question

an object kept at a distance of 5 cm in front of a convex mirror of focal length 10 cm calculate the position of the nature of the image formed​

Answer 1

Here, F = 10cm
u = -5 cm
v = ?

We know that 1/f = 1/u + 1/v
So, 1/10 = 1/(-5) + 1/v
1/10 + 1/5 = 1/v
3/10 = 1/v
10/3 = v

So the image is formed 10/3 cm back of the mirror.
We have used Convex mirror so the image is virtual and erect and diminished as the image is always so in the case of convex lens.

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Answer 2

1/f=1/u+1/v

1/10=1/5+1/v

1=2+10/v

-2=10/v

-2/10=1/v

v=-5cm

so the image is formed 5 cm beyond the mirror