A ray of light makes an angle of 5o degree with the surface so of the glass slab it's angle of incidence will be....?
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HELLO DEAR ANGLE WILL BE THE SAME THAT IS 5o degree
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A ray of light makes an angle of 50° with the surface s1 of glass slab then it's angle of incidence will be
Report by Artikankariya 26.10.2018
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AKASHDIPDAS123456789
AKASHDIPDAS123456789 Apprentice Moderator
The picture gives a clear representation of the above question.
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From the above diagram it is totally clear that
Angle X = 50°.
We also know from the second law of reflection that, Angle of incidence (i) = Angle of Reflection (r) .
And, The angle of a straight line is 180°.
Therefore, 50°+ i + r + 50° = 180°
=> 100°+i+i = 180° (since i=r)
=> 2i = 180°-100°
=> i = 80°÷2
=> i = 40°
Therefore, angle of incidence is 40°.
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