The expression for refractive index is given by
Numerical aperture is expressed as the
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For total internal reflection to occur, which condition must be satisfied?
Find the refractive index of a medium having a velocity of 1.5 x 10^{8}.
The refractive index of air is unity. State True/False.
The numerical aperture of a coaxial cable with core and cladding indices given by 2.33 and 1.4 respectively is
Find the acceptance angle of a material which has a numerical aperture of 0.707 in air.
The numerical aperture of a material with acceptance angle of 60 degree in water will be
The core refractive index should be lesser than the cladding refractive index for a coaxial cable. State True/False
The refractive index is 2.33 and the critical angle is 350. Find the numerical aperture.
Choose the optical fibre material from the given materials.
11 videos45 docs73 tests

11 videos45 docs73 tests
