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A point source is kept at a distnace 1000m has an illumination I. To change the illumination to 16I, the new distance should become
Options
(a) 250 m
(b) 500 m
(c) 750 m
(d) 800 m
Correct Answer:
250 m
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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- A disc of mass 100 g is kept floating horizontally in air by firing bullets
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What are the unit of K = 1 / (4 π ?￢ﾂﾒ)
- A disc of mass 100 g is kept floating horizontally in air by firing bullets
- The value of Poisson’s ratio lies between
- Which of the following phenomenon exhibited the particle nature of light?
- The coherence of two light sources means that the light waves emitted have
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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