Question 9 — Measure the length of - Questions at the end of the chapter - Chapter 11 Class 7 - Light: Shadows and Reflections (Curiosity)

Last updated at July 13, 2026 by

Q 9
Question

Measure the length of your shadow at 9 AM, 12 PM, and 4 PM with the help of your friend. Write down your observations:

(i) At which of the given times is your shadow the shortest?

(ii) Why do you think this happens?

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Answer
The shadow is shortest at 12 PM, when the Sun is highest.

Explanation

  • (i) The shadow is shortest at 12 PM (noon).
  • (ii) At noon the Sun is almost overhead.
  • High Sun makes a short shadow.
  • In the morning and afternoon the Sun is low, so shadows are long.
A high noon Sun gives the shortest shadow.
← Back to concept: 11.4 Shadow Formation
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