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प्रश्न
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उत्तर
Four characteristics of light are:-
(a). Light waves can travel through a vacuum
(b). Light waves are transverse waves
(c). The wavelength of light waves is short so that their length is measured in cents-microns.
(d). The velocity of light in a vacuum is 3 x 108 m/s.
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संबंधित प्रश्न
State which surface of a plane mirror reflects most of the light incident on it: the front smooth surface or the back silvered surface.
Give two uses of concave mirror.
State whether the following statement is true or false. If false, correct it.
The image in a plane mirror is situated in the mirror.
Define the term Principle axis.
Define reflection.
______Surface reflects the light well.
Which material is transparent?
An object that blocks all of the light from passing through is ______.
