Ray Optics-Snell's Law (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 1 - 3 of 6

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Question number: 1

» Ray Optics » Snell's Law

Appeared in Year: 2010

MCQ▾

Question

Three transparent media of refractive indices µ1, µ2, µ3 respectively, are stacked as shown. A ray of light follows the path shown. No light enters the third medium.

 Beam of light passing through three transparent mediums

Beam of Light Passing Through Three Transparent Mediums

In figure path of a ray of light passing through three mediums having different refractive indexes is shown.

Then-

Choices

Choice (4) Response

a.

µ1<µ3<µ2

b.

µ2<µ1<µ3

c.

µ3<µ1<µ2

d.

µ1<µ2<µ3

Question number: 2

» Ray Optics » Snell's Law

Appeared in Year: 2011

MCQ▾

Question

A material is embedded between two glass plates. Refractive index n of the material varies with thickness as shown below. The maximum incident angle (in degrees) on the material for which beam will pass through the material is –

Graph of refractive index verses thickness

Graph of Refractive Index Verses Thickness

Figure shows refractive index n of material varies with thickness x.

Choices

Choice (4) Response

a.

60.0

b.

53.1

c.

43.5

d.

32.3

Question number: 3

» Ray Optics » Snell's Law

Appeared in Year: 2012

MCQ▾

Question

On a bright sunny day a diver with height h stands at the bottom of a lake of depth H. Looking upward, he can see objects outside the lake in a circular region of radius r. Beyond this circle he sees the images of objects lying on the floor of the lake. If refractive index of water is 43 , then the value of r is,

Choices

Choice (4) Response

a.

3h7

b.

Hh73

c.

3(Hh)7

d.

(Hh)53

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