A small cardboard is kept between the wall and the
bulb in a room. At which position the shadow formed
is sharp?
A The cardboard is held close to the wall.
B The cardboard is held at mid position between
them.
C The cardboard is held close to the bulb.
D Both a and c
The answer isCBut I think it should be A.I actually tried it and it was was the sharpest when held close to the wall.
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Class : Class 9
The answer should be A.When the object is close to the bulb more light will be diffracted so the image will not be sharp.I have performed this at a lab.
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Class : Class 8
the questions below please give her an appointment on Wednesday morning or Sunday or Friday or Thursday or Wednesday or Tuesday or Monday or Saturday afternoon to be more difficult times that he doesn't say they can't have enough
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Pratheek
from
Null, Null
Class : Class 4
The answer must be A. We have performed this experiment at our school.