Refraction Numerical Part 1

Refraction Numerical Part 2

Numericals Part 01

Numericals Part 02

Numeration

Laws Of Refraction Of Light |Practice Exercise Part 1|Refractive Index And Speed Of Light|Practice Exercise Part 2|Summary

The glass of optical fibre has a refractive index 1.55 and cladding with another glass of refractive index 1.51. When the surrounding medium is air, the numerical aperture will be

The denominator of a rational number is greater than the numerator by 10. If the numerator is increased by 1 the and denominator is decreased by 1, then expression for new denominator is _________.

The sum of the nermerator and denominator of a fraction greater by 1 than thrice the numerator. If the numerator decreased by 1 , then the fraction reduces to (1)/(3) . Find the fraction

Light guidance in an optical fibre can be understood by considering a structure comprising of thin solid glass cylinder of refractive index n_1 surrounded by a medium of lower refractive index n_2 . The light guidance in the structure takes place due to successive total internal reflectrions at the interface of the media n_1 and n_2 as shown in the fugure. All rays with the angle of incidence i less than a particular value i_m are confined in the medium of refractive index n_1 . The numerical aprture (NA) of the structure is defined as sini_m If two structure of same cross-sectional area, but different numerical apertures NA_1 and NA_2(NA_2ltNA_1) are joined longitudinally, the numerical aperture of the combined structure is

Refraction || Refractive Index || Laws OF Refraction