Multiple choice

The magnifying power of a simple microscope can be increased if we use eye piece of

  1. higher focal length

  2. smaller focal length

  3. higher diameter

  4. smaller diameter

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The magnifying power of a simple microscope increases when using an eyepiece with smaller focal length because angular magnification is inversely proportional to focal length. Shorter focal length eyepieces create greater angular magnification of the object.