If a ray of light enters the prism hypotenuse-face at O* incident angle, then minimum index of refraction of the prism for which the ray totally internally reflects at each of the two sides making the right angle will be given by:
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![If a ray of light enters the prism hypotenuse-face at 0* incident angle, then the
minimum index of refraction of the prism for which the ray totally internally
reflects at each of the two sides making the right angle will be given by:
air
45°
n = ?
45°
O n= 1.351
n= 1.326
O n= 1.273
O n= 1.414
O n= 1.150](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0b2de546-9c7e-4e6a-aa29-f453b432a1ef%2F87ab725c-f106-43e0-a436-ece944bfcae3%2Fwholr1o_processed.jpeg&w=3840&q=75)
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