If a light ray from air enters three different media in such a way that the refracted angles are $45^{0}$ , $30^{0}$ and $60^{0}$ respectively. Identify the right statement with respect to the optical density of these media.

Optical density is highest for medium 3.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Optical density is highest for medium 2.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Optical density is least for medium 3.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Optical density is least for medium 2.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
Optical density is highest for medium 2.

Angle of incidence $i$ is same for all three media. Angle of refraction for the different media are:
$r_{m 1} = 45^{\circ}$
$r_{m 2} = 30^{\circ}$
$r_{m 3} = 60^{\circ}$

Deviation will be highest for medium with highest optical density. Clearly, the deviation is highest $(30^{\circ})$ for Medium 2. Hence, Medium 2 has highest optical density.

Suggest Corrections

Similar questions

Q. If a light ray from air enters three different media in such a way that the refracted angles are

45^{0}

30^{0}

and

60^{0}

respectively. Identify the medium where the speed of light is the lowest.

Q. If a light ray from air enters three different media in such a way that the refracted angles are

45^{0}

30^{0}

and

60^{0}

respectively, then which is the densest medium among the three?

In the figure,

n_{1}

represents the refractive index of air.

If a light ray from air enters 3 media in such a way that the refracted angles are $45^{0}$ , $30^{0}$ and $60^{0}$ respectively, then which is the densest medium among the three?

In the figure, $n_{1}$ represents refractive index of air.

Q. (i) Write relationship between the angle of incidence and the angle of refraction for a given pair of media.
(ii) When a ray of light enters from one medium to another having different optical densities it bends. Why does this phenomenon occur?
(iii) Write one condition where it does not bend when entering a medium of different optical density.

Q. If a ray of light in a denser medium enters into a rarer medium at an angle of incidence

i

, the angle of reflection and refraction are respectively

r

and

r^{'}

. If the reflected and refracted rays are at right angles to each other, the critical angle for the given pair of media is:

Join BYJU'S Learning Program

If a light ray from air enters three different media in such a way that the refracted angles are 450, 300 and 600 respectively. Identify the right statement with respect to the optical density of these media.

If a light ray from air enters three different media in such a way that the refracted angles are $45^{0}$ , $30^{0}$ and $60^{0}$ respectively. Identify the right statement with respect to the optical density of these media.