# Ray Optics (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 1 - 4 of 13

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## Question number: 1

» Ray Optics » Total Internal Reflection

Appeared in Year: 2010

MCQ▾

### Question

A point source of light is placed at the bottom of a vessel which is filled with water of refractive index μ to a height h. If a floating opaque disc has to be placed exactly above it so that the source is invisible from above, the radius of the disc should be –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 2

» 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.

Then-

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 3

» Ray Optics » Lens Maker's Formula and Lens Formula

Appeared in Year: 2010

MCQ▾

### Question

A narrow parallel beam of light falls on a glass sphere of radius R and refractive index µ at normal incidence. The distance of the image from the outer edge is given by

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 4

» 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 –

### Choices

Choice (4) Response

a.

60.0

b.

53.1

c.

43.5

d.

32.3

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