Generate Quiz 6A67A1FB52F14

1 / 10

In a stationary wave, the distance between a node and an adjacent antinode is equal to ___.

Elimination Tool

A) λ

B) 2λ

C) λ/2

D) λ/4

2 / 10

The speed of sound in air is 332 m/s. The speed of sound at 22 degrees centigrade will be:

Elimination Tool

A) 345.2 m/s

B) 340 m/s

C) 350 m/s

D) 330 m/s

3 / 10

A longitudinal standing wave, in second harmonic mode, is established in a tube that is open at both ends. The length of the tube is 0.80m. What is the wavelength of the waves that make up the standing wave?

Elimination Tool

A) 0.20 m

B) 0.40 m

C) 0.80m

D) 1.60m

4 / 10

The path difference for the constructive interference is:

Elimination Tool

A) (n-1)λ

B) (n+1)λ

C) n λ / 2

D) 2n λ

E) n λ

5 / 10

If the wavelength of a wave is 20 cm and its time period is T, what is the distance travelled by a crest on the wave in 1.25T?

Elimination Tool

A) 30 cm

B) 25 cm

C) 15 cm

D) 40 cm

6 / 10

In a periodic wave, the distance between the second and fifth crest is 15 cm. What is the wavelength of the wave?

Elimination Tool

A) 45 cm

B) 5 cm

C) 1/5 cm

D) 1/3 cm

7 / 10

When two slightly different frequency waves superimpose ____ is formed.

Elimination Tool

A) Beats

B) Stationary waves

C) Light waves

D) Sound waves

8 / 10

A point source broadcasts sound into a uniform medium. If the distance from the source is tripled how does the intensity change?

Elimination Tool

A) It becomes one-ninth as large

B) It becomes one-third as large

C) It becomes three times larger

D) It becomes nine times large

9 / 10

The shortest distance between two points on a travelling wave that have a phase difference of (pi/3) is 5 cm. If the wave has frequency 500 Hz, what is the speed of the wave?

Elimination Tool

A) 300 m/s

B) 150 m/s

C) 300 cm/s

D) 150 cm/s

10 / 10

A pipe is open at both ends. A stationary wave is formed in the air of the pipe. Which statement is true?

Elimination Tool

A) There is always a central antinod

B) There is always a central node

C) The sum of number of nodes and the number of antinodes is always an even number

D) The sum of number of nodes and the number of antinodes is always an odd number

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