passwella.
Menu

JAMB Physics 2005 Question 36

Question 36

Lenses and Optical Instruments

A thin converging lens has a power of 4.0 diopters. Determine its focal length.

  1. A.0.25 m.
  2. B.0.03 m.
  3. C.5.00 m.
  4. D.2.50 m.
Show the answer and explanation

Answer: A (0.25 m.)

Explanation

f = 1/P = 1/4 = 0.25 m.