# Physics-Sound (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 5 - 12 of 12

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## Question number: 5

» Physics » Sound

MCQ▾

### Question

Which one of the following statements is wrong?

### Choices

Choice (4) Response

a.

Sound travels in the form of waves

b.

Sound travels in straight line

c.

Sound travels faster in vacuum than in air

d.

Sound is a form of energy

## Question number: 6

» Physics » Sound

MCQ▾

### Question

Synonym for Quality is

### Choices

Choice (4) Response

a.

Timbre

b.

loudness

c.

intensity

d.

frequency

## Question number: 7

» Physics » Sound

MCQ▾

### Question

If the temperature of the atmosphere is increased the following character of the sound wave is affected

### Choices

Choice (4) Response

a.

velocity

b.

wavelength

c.

frequency

d.

amplitude

## Question number: 8

» Physics » Sound

MCQ▾

### Question

Frequency range of the audible sounds is

### Choices

Choice (4) Response

a.

0 Hz - 30 Hz

b.

20 kHz - 20, 000 kHz

c.

20 Hz - 20 kHz

d.

20 kHz - 20 MHz

## Question number: 9

» Physics » Sound

MCQ▾

### Question

Sound waves of wavelength greater than that of audible sound are called

### Choices

Choice (4) Response

a.

ultrasonic waves

b.

sonic waves

c.

seismic waves

d.

infrasonic waves

## Question number: 10

» Physics » Sound

MCQ▾

### Question

In a medium, sound travels 2 km in 3 s and in air, it travels 3 km in 10 s. The ratio of the wavelength of sound in the two medium is

### Choices

Choice (4) Response

a.

1: 18

b.

8: 1

c.

1: 8

d.

20: 9

## Question number: 11

» Physics » Sound

MCQ▾

### Question

Sonar emits which of the following waves?

### Choices

Choice (4) Response

a.

Light waves

b.

Magnetic waves

c.

d.

Ultrasonic waves

## Question number: 12

» Physics » Sound

MCQ▾

### Question

Which of the following is the longitudinal wave?

### Choices

Choice (4) Response

a.

Water waves

b.

Waves on plucked string

c.

Sound waves

d.

Light waves

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