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Manipal MET2011PhysicsRay Optics

While viewing a distant object with a telescope suddenly a housefly sits on objective lens. The correct statement is that

Options

  1. Ahousefly will be seen enlarged in image
  2. Bhousefly will be seen reduced in image
  3. Cintensity of image will be decreased
  4. Dintensity of image will be increased

Correct answer

C. intensity of image will be decreased

Step-by-step solution

If housefly sits on objective lens, then the intensity of image will decrease, because some of light rays will be stopped by housefly but housefly will not be seen.

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