Navigate

A point source is kept at a distnace 1000m has an illumination I. To change the illumination

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.

AIIMS2007
admin:

Related Questions

  1. The electric field part of an electromagnetic wave in a medium is represented by
  2. A 0.01 H inductor and √3 πΩ resistance are connected in series
  3. Consider a two particle system with particle having masses m₁ and m₂. If the first
  4. The young’s modulus of steel is twice that of brass. Two wires of same length
  5. The current in a self-inductance L=40 mH is to be increased uniformly from 1A to 11 A