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Assertion (A): Small glass beads fixed on traffic signal glow brightly when light falls upon them.
Reason (R) : Light is totally reflected when the angle of incidence exceeds a certain critical value and light travelling in a denser medium is reflected from a rarer medium.
Codes:
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- Both A and R are true and R is the correct explanation of A
- Both A and R are but R is not a correct explanation of A
- A is true but R is false
- A is false but R is true
Correct Option: A
N/A
