# Physics-Light (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 26 - 31 of 31

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## Question number: 26

» Physics » Light

MCQ▾

### Question

When a ray of light is going from one medium to another its

### Choices

Choice (4) Response

a.

Wavelength increases

b.

Wavelength remains same

c.

Frequency remains same

d.

Frequency increases

## Question number: 27

» Physics » Light

MCQ▾

### Question

If the top half of a convex lens is covered with black paper,

### Choices

Choice (4) Response

a.

The intensity will be reduced to half

b.

The top half of the image will disappear

c.

The bottom half of the image will disappear

d.

The magnification will be reduced to half

## Question number: 28

» Physics » Light

MCQ▾

### Question

Sun is visible a little before the actual sunrise and until a little after the actual sunset. This is due to

### Choices

Choice (4) Response

a.

Total internal reflection

b.

Refraction

c.

Reflection

d.

Polarization

## Question number: 29

» Physics » Light

MCQ▾

### Question

A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation which of the following is true?

### Choices

Choice (4) Response

a.

RS is horizontal

b.

QR is horizontal

c.

Either PQ or RS is horizontal

d.

PQ is horizontal

## Question number: 30

» Physics » Light

MCQ▾

### Question

A prism can have a maximum refracting angle of

### Choices

Choice (4) Response

a.

b.

1 c

c.

d.

## Question number: 31

» Physics » Light

Assertion-Reason▾

### Assertion (Ꭺ)

Radio waves are bending in a magnetic field.

### Reason (Ꭱ)

Radio waves are electromagnetic in nature.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

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