Question 3 — Sahil, Rekha, Patrick, - Questions at the end of the chapter - Chapter 11 Class 7 - Light: Shadows and Reflections (Curiosity)

Last updated at July 13, 2026 by

Q 3
Question

Sahil, Rekha, Patrick, and Qasima are trying to observe the candle flame through the pipe as shown in Fig. 11.16. Who can see the flame?

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Answer
Only the person whose pipe is straight and in line with the flame can see it.

Explanation

  • Light travels in a straight line.
  • The flame is seen only through a straight, aligned pipe.
  • A bent part of the pipe blocks the view of the flame.
  • So only the child with a straight line of sight sees it.
Only a straight, in-line pipe lets a child see the flame.
← Back to concept: 11.2 Does Light Travel in a Straight Line?
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