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A lens with power + I dioptre must have its focal length equal to [A] 100 cm [B] 10cm [C] 1 cm [D] 1000cm

A lens with power + I dioptre must have its focal length equal to 


 


 


[A] 100 cm 


[B] 10cm 


[C] 1 cm  


[D] 1000cm

Grade:upto college level

3 Answers

Mujahid Ahmed
42 Points
8 years ago

100 cm.

Power = 1/f(in metres)

Devank Tyagi
18 Points
8 years ago

A) 100cm

Keerthi Raj
39 Points
8 years ago

[A] 100 cm 

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