| ⇦ | 
| ⇨ |
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: - The maximum kinetic energy of emitted electrons in a photoelectric effect
- The dimensional formula of Plancks’s constant and angular momentum are
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
- The force F acting on a particle of mass m is indicated by the force-time graph
- A cell of emf E and internal resistance r supplies current for the same time
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The maximum kinetic energy of emitted electrons in a photoelectric effect
- The dimensional formula of Plancks’s constant and angular momentum are
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
- The force F acting on a particle of mass m is indicated by the force-time graph
- A cell of emf E and internal resistance r supplies current for the same time
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.
Share this page with your friends
Leave a Reply