You have to cast the shadow of your pencil on the wall with the help of candle in a dark room. How can you obtain a shadow smaller in size than the pencil?
[You cannot use mirrors or lenses and assume the candle to be a point source of light]
Keep the pencil close to the wall
Bring the pencil closer to the candle
Keep the pencil midway between the candle and the wall
You cannot obtain a shadow smaller than the size of the pencil
A
Keep the pencil midway between the candle and the wall
B
You cannot obtain a shadow smaller than the size of the pencil
C
Keep the pencil close to the wall
D
Bring the pencil closer to the candle
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