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A ray of light is incident on a plane mirror at an angle 30° with the normal at the point of incidence. The ray will be deviated from its incidence direction by what angle?  
  • a)
    30°
  • b)
    60° 
  • c)
    120°
  • d)
    None of these 
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A ray of light is incident on a plane mirror at an angle 30° with ...
The given situation can be shown as
By la w o f reflection , angle o f incidence i is equ al to angle o f r e fle c tio n r Total deviation of ray = 30° 4- 30° = 60°
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A ray of light is incident on a plane mirror at an angle 30° with the normal at the point of incidence. The ray will be deviated from its incidence direction by what angle?a)30°b)60°c)120°d)None of theseCorrect answer is option 'B'. Can you explain this answer?
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