Science, asked by dilshanpreet, 1 year ago

Find the power of a concave lens of focal length 2.5 cm

Answers

Answered by raj5832

1

2/5 diopter p- 1/focal length

Answered by priya3435

3

The focal lengyh for concave lens is in negative.

F= -2.5cm = -2.5÷100m = - 1÷40m

Power=1÷f(in metre)

= - 1/1/40

= -40 D

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