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Question
Observe the picture given in Fig. 11.1 carefully.
A patch of light is obtained at B, when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?
Options
A wooden board
A glass sheet
A mirror
A sheet of white paper,
Solution
A mirror
Explanation:
Only a mirror can reflect a patch of light and change its direction.
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