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Simple Harmonic Motion and Waves
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Speed (v) of wave is equal to product of frequency and
Wavelength
time period
Vibration
Amplitude
A transverse wave produced on a spring has a frequency of 200 Hz and travels along length of a spring of 80 m in 0.5seconds.
speed of wave will be
133 ms-1
150 ms-1
122 ms-1
140 ms-1
Christian Huygens invented pendulum clock in
1656
1670
1682
1657
Water waves are
electromagnetic
longitudinal
Mechanical
chemical
Oscillations of a system in presence of some resistive force are
random oscillations
linear oscillations
simple harmonic oscillations
damped oscillations
Expression for Hooke's law is
F = -kx
F = m1m2
F = vl
F = ma
A simple pendulum completes one vibration in 3seconds.
When g = 10 ms-2, its length will be
2 m
1.5 M
3.2 m
2.28 m
If length of simple pendulum is doubled then its time period will be
2π√g
2.8π√(l⁄g)
tripled
4π√(l⁄g)
Motion of ceiling fan
quadratic
is SHM
isn't SHM
Linear
At one end of a ripple tank 90 cm across, a 6Hz vibrator produces wave whose wavelength is 30 mm. time needed to cross waves is
10 seconds
3 seconds
7 seconds
5 seconds
If 100 waves pass through a medium in 20seconds and their wavelength is 6cm then velocity is
0.3ms-1
1ms-1
2.5ms-1
0.5ms-1
Time period of simple pendulum 1 m long at a location where g=10ms-1 will be
1.5 s
3 s
2.5 s
1.99 s
If spring is stiff, then value of k is
approx. zero
Moderate
Small
Large
Motion of a ball placed in a bowl is
compressional motion
simple harmonic motion
damped motion
None of the above
Velocity of simple harmonic motion at mean position is always
Zero
Negative
Minimum
maximum
Time period T of simple harmonic motion of a mass m attached to a spring is given by
T = 2π √(k/m)
T = 2π √(m+k)
T = 2π √(m/k)
T = π √(k/m)
If 160 waves pass through a point of a medium in 40seconds.
Its frequency is
2 Hz
5 Hz
3 Hz
4 Hz
If mass of bob is increased 3 times then it's time period
increases 4 times
Remains same
Increases
decreases 2 times
Speed of a wave in water depends on the
None of the above
Temperature
depth of water
depth of tank
Characteristic of wave independent of others is
Amplitude
Frequency
Speed
Wavelength
1
2
3
5
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Related Topics
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