1 |
The water waves after striking the hurdle will: |
Reflect
Refract
Diffract
All a , b, c
|
2 |
The speed of waves can be calculated by: |
Vt
d x t
f λ
Tf
|
3 |
The unit of frequency is: |
Heartz
Vibration per second
Cycle per second
all a, b, c
|
4 |
The number of wavelength of waves passing through a point in one secnd is called: |
Time period
Cycle
Frequency
None of these
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5 |
The distance between two consecutive troughs or crests is called: |
wavelength
Frequency
Time period
None of these
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6 |
The part of waves at which particles of the medium are below the normal position are called: |
Extreme positon
Crest
Trough
None of these
|
7 |
The instrument used to study the properties of waves is called: |
Ripple tank
Stroboscope
Pendulum
None of these
|
8 |
The wave properties |
Reflection
Refraction
Diffraction
All of these
|
9 |
The energy is transferred from one place to another: |
Through matter
Thouth waves
both a and b
None of these
|
10 |
The waves in which particles of the medium vibrate perpendicular to the directions waves are: |
Electromagnetic waves
Sound waves
bothe a and b
Transverse waves
|
11 |
The waves in which particle of the medium vibrate parallel to the direction of waves are called |
Longitudinal waves
Transverse waves
Electromagnetic waves
both b and c
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12 |
The value of acceleration in simple harmonic motion at mean position is |
Maximum
Zero
10 N
Both a , b
|