Question

if the focal length of mirror is 5 m then what will be the power of mirror​

Answer 1

Answer:

long long long long long long long long long long long

Answer 2

Answer:

It is given that,

Focal length of the convex lens, f = 5 cm

To find,

The magnifying power of the lens.

Solution,

The formula of the magnifying power of a lens is given by :

m=1+\dfrac{D}{f}m=1+

f

D

D is the least distance of distinct vision, D = 25 cm

m=1+\dfrac{25}{5}m=1+

5

25

m = 6

The magnifying power of the convex lens is 6. Hence, this is the required solution.

Explanation:

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