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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.
Related Questions: - If a magnetic substance is kept in a magnetic field, then which of the following
- Which one of the following bonds produces a solid that reflects light in the visible region
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a magnetic substance is kept in a magnetic field, then which of the following
- Which one of the following bonds produces a solid that reflects light in the visible region
- The distance travelled by a particle starting from rest and moving
- A sound source is moving towards a stationary listener with 1/10th of the speed
- Across a metallic conductor of non-uniform cross-section, a constant potential
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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