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. Two nuclei are said to be mirror nuclei of
  2. A meter stick of mass 400 g is pivoted at one end and displaced through an angle 60°.
  3. A body moves with a uniform acceleration a and zero initial velocity
  4. A magnifying glass of focal length 5 cm is used to view an object by a person
  5. A particle starts its motion from rest under the action of a constant force