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Physics | Waves
Practice Physics | Waves on Bissoy — browse topics below and open any question.
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Beats
Doppler effect
Energy and Power of a Wave Traveling Along a String
Intensity and Sound Level
Interference of Waves
Sources of Musical Sound
Standing Waves
Standing Waves and Resonance
Supersonic Speeds
The principle of superposition of waves
The speed of a travelling wave
The Speed of Sound
The Wave Equation
Transverse and longitudinal waves
Traveling Sound Waves
Types of Waves
Wavelength and Frequency
Questions
What happens if the reverberation time is too large?
ক
The sound becomes inaudible
খ
Echoes are produced
গ
Frequency becomes high
ঘ
The sound becomes infrasonic
In which medium sound travels faster?
ক
Solid
খ
Liquid
গ
Gas
ঘ
Water vapour
Which of the following represents the correct set of modulation classification?
ক
Frequency, time period
খ
Frequency, amplitude
গ
Amplitude, wavelength
ঘ
Wavelength, frequency
Ultrasonic waves are used for stirring liquid solutions because they
ক
do not produce noise during the operation
খ
are easy to produce
গ
can produce perfectly homogeneous solutions
ঘ
do not produce chemical reactions in the solution
Who invented Television?
ক
J L Baird
খ
Aristotle
গ
James Clerk Maxwell
ঘ
Nikola Tesla
Which of the following statements is not correct regarding the travel of sound waves?
ক
Sound waves can travel through water
খ
Sound waves can travel throught air
গ
Sound waves can travel through steel
ঘ
Sound waves can travel through vacuum
Sound above what level (in decibel) is considered hazardous noise pollution?
ক
30 dB
খ
100 dB
গ
80 dB
ঘ
120 dB
Resonance is an example of
ক
tuning fork
খ
forced vibration
গ
free vibration
ঘ
damped oscillation
Sound wave in air is
ক
transverse
খ
longitudinal
গ
electromagnetic
ঘ
polarised