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 Physics Question

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:

  1. The string of a pendulum is horizontal.The mass of bob attached to it is m
  2. A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
  3. Energy stored in the coil of a self inductance 40 mH carrying a steady current of 2A
  4. Which is correct relation?
  5. The most stable particle in Baryon group is

Topics: Wave Optics (101)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*