| 1 |
The relation between v,f andλ of a wave is: |
vf=λ
fλ = v
vλ =f
v=λ/f
|
| 2 |
Which of the following characteristic of a wave is independent of the others . |
speed
frequency
amplitude
wavelength
|
| 3 |
A large ripple tank with a vibrator working at a frequency of 30 Hz produces 25 complete wae in distance of 50 cm. The velocity of the wave is: |
54 cms<sup>-1</sup>
60 cms<sup>-1</sup>
750 cms<sup>-1</sup>
1500 cms<sup>-1</sup>
|
| 4 |
The vacuum all electromagnetic wave have the same |
speed
frequency
amplitude
wavelength
|
| 5 |
Which of the following is a method of energy transfer. |
Conduction
Reatiation
wave motion
all of these
|
| 6 |
Wave transfer |
Energy
Frequency
Wavelength
Velocity
|
| 7 |
Which of the following devices can be used to produce both a transverse and longitudinal waves? |
A string
A ripple tank
A helical spring
A tuning fork
|
| 8 |
If the mass of the bob of a pendulum is increased by a factor of 3. The period of the pendulum's motion will: |
Be increased by a factor 2
Remain the same
Be decreased by a factor of 2
Be decresaed by a facro of 4
|
| 9 |
Which of the following is an example of simple harmonic motion ? |
Motion of the simple pendulum
The motion of ceiling fan
The spining of the Earth on its axis
A bouncing ball on a floor
|
| 10 |
The product of frequency (f) and wavelengthλ is equal to: |
Time period
Amplitude
Wave speed
Wave energy / frequency
|
| 11 |
If a wave moves in a slinky spring with frequency of 4Hz and wave length of 0.4m, the speed of the wave will be: |
1.0 ms-1
1.2 ms-1
1.4 ms-1
1.6 ms-1
|
| 12 |
Wave equation is defined as: |
f = Tλ
f = V λ
V = 2fλ
V = fλ
|
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