in what si unit is the power of kens stated? a convex lens has a focal length of 50cm. calculate the power of the lens.

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Solution

The SI unit of power of a lens is ‘Dioptre’ or ‘D’.
1 D = 1/f
‘f’ must be in meter.
Given, f = 50 cm = 0.5 m
So, Power = 1/.5 = 2 D

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in what si unit is the power of kens stated? a convex lens has a focal length of 50cm. calculate the power of the lens.

The SI unit of power of a lens is ‘Dioptre’ or ‘D’.1 D = 1/f‘f’ must be in meter.Given, f = 50 cm = 0.5 mSo, Power = 1/.5 = 2 D

The SI unit of power of a lens is ‘Dioptre’ or ‘D’.
1 D = 1/f
‘f’ must be in meter.
Given, f = 50 cm = 0.5 m
So, Power = 1/.5 = 2 D