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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 vertical spring with force constant k is fixed on a table. A ball of mass
- A stone tied to the end of a string of 1 m long is whirled in a horizontal circle
- A potentiometer circuit has been set up for finding the internal resistance of a given
- A transistor-oscillator using a resonant circuit with an inductor L
- What will be the ratio of the distance moved by a freely falling body from rest in 4th
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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