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When angle of incidence in a denser medium is equal to critical angle, the angle of refraction is
  • a)
  • b)
    30°
  • c)
    90°
  • d)
    60°
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
When angle of incidence in a denser medium is equal to critical angle,...
When the angle of incidence in a denser medium is equal to the critical angle, the angle of refraction is 90 degrees (or pi/2 radians) and the refracted ray travels along the boundary between the two media. This phenomenon is known as total internal reflection.
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When angle of incidence in a denser medium is equal to critical angle,...
The correct option is Option C.

Qs shown in the fig angle of incidence in denser medium increases angle of refraction also increases. 
When angle of incidence equals the critical angle, the angle of refraction will be 90°. and if further increase in the incidence angle light undergoes reflection.
 
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When angle of incidence in a denser medium is equal to critical angle, the angle of refraction isa)0°b)30°c)90°d)60°Correct answer is option 'C'. Can you explain this answer?
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