A ray of monochromatic light is incident...

A ray of monochromatic light is incident on the plane surface of separation between two media x and y with angle of incidence `i` in the medium x and angle of refraction r in the medium y. The graph shows the relation between sin `i` and sin `r`.

The speed of light in the medium y is `sqrt3` times than in mediun x

The speed of light in the medium y is `1/sqrt3` times than in medium x

The total internal reflection can take place when the incidence is in x

The total internal reflection can take place when the incidence is in y

Text Solution

Verified by Experts

The correct Answer is:

B, D

`(sini_1)/(sini_2)=v_1/v_2`
`:. Sinr/sini=slope=1/sqrt3=(v_y)/(v_x)`
`:. v_y=v_x/sqrt3`
Speed of light in medium-y is less. So, it is denser.
TIR takes place when ray of travels from denser to
rarer medium.

Topper's Solved these Questions

REFRACTION OF LIGHT
DC PANDEY|Exercise Level 2 Comprehension Based|3 Videos
REFRACTION OF LIGHT
DC PANDEY|Exercise Level 2 Subjective|21 Videos
REFRACTION OF LIGHT
DC PANDEY|Exercise more than one correct option|1 Videos
REFLECTION OF LIGHT
DC PANDEY|Exercise Subjective|9 Videos
SEMICONDUCTORS
DC PANDEY|Exercise Subjective|12 Videos

A ray of light is incident on the surface of separation of a medium at an angle 45^(@) and is refracted in the medium at an angle 30^(@) . What will be the velocity of light in the medium?

`1.96 xx 10^(8)` m/s

`2.12 xx 10^(8)` m/s

`3.86 xx 10^(8)` m/s

`3.33 xx 18^(8)`m/s

A ray of light is incident on the surface of seperation of a medium at an angle 45^(@) and is refracted in the medium at an angle 30^(@) . What will be the velocity of light in the medium?

`1.96xx10^(8)` m/s

`2.12xx10^(8)` m/s

`2.65xx10^(8)` m/s

`1.24xx10^(8)` m/s

AN unpolarised beam of light is incident at the polarising angle on the surface of a transparent medium of refractive index 1.6. The angle of refraction in the medium is

`58^(@)`

`29^(@)`

`32^(@)`

`42^(@)`