1 |
In there is no extension in the spring then this positon is called |
Equilibrium position
Unequilibrium
Nautral equilibrium
Stable equilibrium
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2 |
The force applied on the mass attached with a spring is represented by: |
F<sub>a</sub>
F<sub>c</sub>
F<sub>ext</sub>
F<sub>s</sub>
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3 |
The waves, which are used to detect the broken bones, are called: |
Light waves
x-rays
Sound waves
both b,c,
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4 |
The disturbance travelling in a medium is called: |
Wave motion
Simple harmonic motion
Motion
both a ,b
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5 |
The relation between v,f andλ of a wave is: |
vf=λ
fλ = v
vλ =f
v=λ/f
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6 |
Which of the following characteristic of a wave is independent of the others . |
speed
frequency
amplitude
wavelength
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7 |
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>
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8 |
The vacuum all electromagnetic wave have the same |
speed
frequency
amplitude
wavelength
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9 |
Which of the following is a method of energy transfer. |
Conduction
Reatiation
wave motion
all of these
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10 |
Wave transfer |
Energy
Frequency
Wavelength
Velocity
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11 |
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
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12 |
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
|