Physics, asked by pitambarmicro74, 11 months ago

What is power of lens of focal length of
20cm ?

Answers

Answered by brainlyaryan12

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Focal length = 20cm = 0.2m

$\large{P=\frac{1}{f}}$

=> $P=\frac{1}{0.2}$

=> $P=\frac{10}{2}$

=> $\huge\orange{\fbox{\pink{P=+5D}}}$

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Answered by adityarajgupta926

Answer:

D=1/f

Here f =20 cm

=20/ m

=1/5m

then

D=1/1/5

D=5 daiptur

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