Waves Test

Result

Waves Test - 56

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Weekly Quiz Competition

Question 1
4 / -1

A wave of wavelength 2m is reflected from a surface. If a node is formed at 3m from the surface, then at what distance from the surface another node will be formed

A
1 m

B
2 m

C
3 m

D
4 m

Solution
Question 2
4 / -1

In stationary waves, distance between a node and its nearest antinode is 20 cm. The phase difference between two particles having a separation of 60 cm will be

A
Zero

B
π / 2

C
π

D
3π /2

Solution
Question 3
4 / -1

Stationary waves of frequency 300 Hz are formed in a medium in which the velocity of sound is 1200 metre/sec. The distance between a node and the neighboring antinodes is

A
1 m

B
2 m

C
3 m

D
4 m

Solution
Question 4
4 / -1

Which two of the given transverse waves will give stationary waves when get superimposed
z₁ = a cos (kx – ωt) ... (A)
z₂ = a cos (kx + ωt) … (B)
z₃ = a cos (ky – ωt) … (C)

A
A and B

B
A and C

C
B and C

D
Any two
Question 5
4 / -1

Two waves are approaching each other with a velocity of 20 m/s and frequency n. The distance between two consecutive nodes is

A

B

C

D

Solution
Question 6
4 / -1

Energy is not carried by which of the following waves?

A
Stationary

B
Progressive

C
Transverse

D
Electromagnetic
Question 7
4 / -1

A
3 cm

B
4.5 cm

C
6 cm

D
1.5 cm

Solution
Question 8
4 / -1

Two sinusoidal waves with same wavelengths and amplitudes travel in opposite directions along a string with a speed 10 ms^–1. If the minimum time interval between two instants when the string is flat is 0.5 s, the wavelength of the waves is

A
25 m

B
20 m

C
15 m

D
10 m

Solution
Question 9
4 / -1

In a stationary wave all the particles

A
On either side of a node vibrate in same phase

B
In the region between two nodes vibrate in same phase

C
In the region between two antinodes vibrate in same phase

D
Of the medium vibrate in same phase
Question 10
4 / -1

When a stationary wave is formed then its frequency is

A
Same as that of the individual waves

B
Twice that of the individual waves

C
Half that of the individual waves

D
None of the above

Solution