The answer to this question is: Focal length of concave lens, f = 2 m Power of lens, P= 1/f = 1/( 2)= 0.5D Access a diverse Question Bank and ask You Own ...

Step 1, Given data. Focal length =−2m (It is concave lens). Step 2: Formula used. Power of lens =1focallength. Step 3: Finding the power. Power of the lens =1−2 ...

A concave lens has negative focal length, so it is to be written with a minus sign. Thus, Focal length, f=−2 m. Now, Power, p=1f in metres. P=1−2. P=−0.5D

Therefore, the power of the concave lens with a focal length of 2 m is -0.5 diopters. Was this helpful?

The diopter is the unit of measure for the refractive power of a lens. The power of a lens is defined as the reciprocal of its focal length in metres, ...

29 сент. 2021 г. · The correct answer is -0.5 dioptre. The focal length of the concave lens is always negative. Hence, the given focal length is -2m.

7 авг. 2024 г. · Final Answer: The power of the concave lens is −0.5diopters.

Step 1, Given data Focal length =−2 m (It is concave lens) Step 2: Formula used Power of lens = focal length 1​ Step 3: Finding the power Power of the lens ...

11 авг. 2017 г. · The focal length of a concave lens, f = 2m. Power of lens, P = = = -0.5D. Hence power of the lens = – 0.5 D.