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refractive index of B is = sin i/ sin r
where i is angle of incidence and r is angle of refraction .
also refractive index of B is = speed of light in A / speed of light in B
Prashant5577:
Options for question-a. Greater than unity b. Less than unity c. Equal to unity d. Zero
less than unity as the speed of light in medium A is less than speed of light in medium B .
greater than unity
sry sry less than unity
or wait let me check
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