Q146 / 150 · MHT CET 2024 (10 May Shift 1) · Physics

Simple microscope is used to see the object first in blue light and then a red light. Due to the change from blue to red light, its magnifying power

  • Correct answer
    A
    decreases
  • B
    increases
  • C
    remains same
  • D
    first increases and then decreases

Solution

Magnifying power of a simple microscope $=1+\frac{D}{f}$ Focal length of red light is greater than the focal length of blue light. Hence, the magnifying power will decrease.

Hence, the correct answer is option: 'A'.

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