Question

Please Help Me With This

Radius of curvature of a convex mirror used on a moving automobile is 2m. A truck is coming behind it at a constant distance of 3m calculate the position, size, nature of the image formed?

With EXPLAINATION only

Answer 1

Answer:

V = 0.77m

Explanation:

Given,

R = 2m

Focal length, f = R/2 = 1

U = -3.5m

To find

V , M and nature of the image.

PROOF:

1/v + 1/u = 1/f

1/v = 1/f - 1/u

ie: 1/v = 1/1 + 1/3.5

Thus: 1/v = 3.5 + 1

3.5

1/v = 4.5

3.5

Therefore, v = 3.5 = 0.77m .

4.5

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