Question

what is the focal length of a lens if power of the lens is one dioptre​

Answer 1

Answer:

1 meter or 100 cm

Explanation:

power = 1/f (f = focal length)

1 = 1/f

f = 1 meter

so, focal length = 1 meter or 100 cm

Answer 2

✒ $\sf\small\red{\underline \bold{QUESTION?}}</h2><h2>$

What is the focal length of a lens if power of the lens is one dioptre?

★ $\sf\small\blue{\underline \bold{ANSWER!!}}</h2><h2>$★

⋆⋆ One meter ⋆⋆

The SI unit of power of lens is dioptre whose focal length is one meter, which is denoted by the letter D.

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