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Standard VII
Physics
Reflection
2. why a ligh...
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2. why a light reflects when sriked a polished surface and why angle of incidence is always equal to angle of reflection
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Q.
When light is incident on a surface, the angle of incidence is equal to the angle of reflection.
Q.
When light is incident on a polished surface ___________ reflection takes place.
Q.
Assertion :A light ray is incident on a glass slab. Some portion of it is reflected and some is refracted. Refracted and reflected rays are always perpendicular to each other. Reason: Angle of incidence is equal to angle of reflection.
Q.
Law of reflection states that when a light ray is incident on a reflecting surface then angle of incidence (i) = Angle of reflection (r). If incident ray is given by
[
^
i
2
+
√
3
2
^
j
]
& reflected ray is given by
[
^
i
2
−
√
3
2
^
j
]
,
then angle of incidence is :-
Q.
The angle of incidence is always equal to the angle of reflection.
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