Physics
If the source of light is placed on top of an object, will there be shadow formation? Why?
Answer
No, there will be no shadow formation.
When the source of light is placed directly on top of the object, the light rays fall symmetrically around the object and do not get blocked in any one direction. Hence, there is no region behind the object where light is completely obstructed, so no shadow is formed.
Related Questions
Give two examples each of transparent, translucent and opaque objects from your surroundings.
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Some of the facts that you have learnt till now are listed below. Tick (✓) the facts that are correct and cross (x) the facts that are incorrect.
(a) Light can propagate in any type of motion.
(b) Translucent objects cast a faint shadow.
(c) The colour of the shadow depends on the object.
(d) The size of the shadow is independent of the size of source of light.
(e) Eclipse occurs when a heavenly body blocks the sunlight.