Ray Optics Test...

Material A has critical angle i_A, and material B hascritical angle i_B (i_B> i_A) then which of the following istrue
(i) Light can be totally internally reflected when it passes from B to A
(ii) Light can be totally internally reflected when it passes from A to B
(iii) Critical angle for total internal reflection is i_B – i_A

In the figure shown, for an angle of incidence 45°, at the top surface, what is the minimum refractive index needed for total internal reflection at vertical face

Critical angle for light going from medium (i) to (ii) is θ. The speed of light in medium (i) is v then speed inmedium (ii) is

If light travels a distance x in t₁ sec in air and 10x distance in t₂ sec in a medium, the critical angle of the medium will be

Figure shows a mixture of blue, green and red coloured rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are 46°, 44° and 43° respectively. Thearrangement will separate

A point source of light is kept below the surfaces ofwater in a pond

To a fish under water, viewing obliquely a fisherman standing on the bank of a lake, the man looks

Transmission of light to large distances through optical fibers is bases on

Which one of the following is not associated with totalinternal reflection

Refractive index of a medium is μ. The incidence angle is twice that of refracting angle. The angle of incidenceis