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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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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery
- If the angular momentum of any rotating body increase by 200 % , then the increase
- A cylindrical tank is filled with water to a level of 3m. A hole is opened at a height
- A small signal voltage V(t)=V₀ sin ωt is applied across an ideal capacitor C
- For an ideal gas of diatomic molecules
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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