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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
- A body is thrown vertically upward in air when air resistance is taken into account
- A jar is filled with two non-mixing liquids 1 and 2 having densities
- If L and C denote inductance and capacitance,then the dimensions of L-C are
- A capacitor is used to store 24 watt hour of energy at 1200 volt.
- A parallel plate capacitor of a capacitance 1 pF has seperation between the plates
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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