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BITSAT 2019
Exam
BITSAT
Year
2019
Subject
Physics
Chapter
Ray Optics

BITSAT 2019 · Physics · Ray Optics

In the shown situation, if middle portion of the lens is painted...

In the shown situation, if middle portion of the lens is painted black, then

In the shown situation, if middle portion of the lens is painted black, then

Options

  1. Acomplete image of the object will form with low intensity
  2. Bcomplete image of the object will form with high intensity
  3. Cincomplete image of the object will form with low intensity
  4. Dincomplete image of the object will form with high intensity

Correct answer

A. complete image of the object will form with low intensity

Step-by-step solution

If middle portion of lens is painted black, then less number of refracted rays will intersect, therefore intensity of the corresponding image of object will be less. Though, the rays coming from object refracted with small portion of lens, but complete image of object will be formed but of lesser intensity.
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