KnowledgeBoat Logo

Physics

On reducing the focal length of a lens, its power :

  1. decreases
  2. increases
  3. does not change
  4. first increases then decreases.

Refraction Lens

5 Likes

Answer

increases

Reason — As we know that,

P=1fP = \dfrac{1}{f}

Where,

P = power of lens and

f = focal length of lens.

Hence, power of a lens is inversely proportional to its focal length.

So, on reducing the focal length of a lens, its power increases.

Answered By

2 Likes

Related Questions