alleryStart learning →Frequency of a wave is the reciprocal of which quantity?
- Time period
- Wavelength
- Amplitude
- Wave speed
Show answer and solution
Correct answer: A. Time period
Since n = 1/T, frequency counts vibrations per second and is the inverse of the period.
MHT-CET Sound — practice questions
Explore 68 free Sound questions in MHT-CET Physics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Sound with Quill →Sound questions and exercises with answers
Showing questions 1–30 of 68.
Frequency of a wave is the reciprocal of which quantity?Read the answer and worked solution →What is the SI unit of the amplitude of a mechanical wave?Read the answer and worked solution →Two successive particles in the same state of vibration are separated by oneRead the answer and worked solution →A wave repeating in both time and space shows which property?Read the answer and worked solution →If wave speed in a medium is constant, raising the frequency makes the wavelengthRead the answer and worked solution →When a sound wave enters another medium, which quantity stays unchanged?Read the answer and worked solution →Which of these cannot propagate through a vacuum?Read the answer and worked solution →A wave associated with any moving object is known as aRead the answer and worked solution →EM waves arise from periodic vibrations of which fields?Read the answer and worked solution →Water surface waves are an example of which type of wave?Read the answer and worked solution →Transverse waves can travel through which of these media?Read the answer and worked solution →A transverse wave divides its medium into alternate regions calledRead the answer and worked solution →Sound waves in air are classified asRead the answer and worked solution →In a longitudinal wave, a compression is a region ofRead the answer and worked solution →Longitudinal waves need a medium having which property?Read the answer and worked solution →Sound moves at 330 m/s in air, 4500 m/s in glass. Wavelength ratio air:glass isRead the answer and worked solution →A 2 m string of mass 20 g has tension 100 N. What is the transverse wave speed?Read the answer and worked solution →In Newton's formula for the speed of sound, E stands for theRead the answer and worked solution →Newton assumed that sound propagation in air is a process that isRead the answer and worked solution →The isothermal bulk modulus of air equalsRead the answer and worked solution →Newton's formula gives the speed of sound in air at NTP as aboutRead the answer and worked solution →The measured speed of sound in air at 0 degrees C is close toRead the answer and worked solution →The experimental speed of sound exceeds Newton's predicted value by aboutRead the answer and worked solution →Which physicist resolved the discrepancy in Newton's formula?Read the answer and worked solution →Laplace argued that elasticity of air for sound must beRead the answer and worked solution →The adiabatic modulus of elasticity of air is given byRead the answer and worked solution →For air, the ratio Cp/Cv used in Laplace's correction is aboutRead the answer and worked solution →For an ideal gas at fixed temperature, a change in pressure alone has what effect on sound speed?Read the answer and worked solution →If speed at 0 degrees C is 332 m/s, the speed at 30 degrees C is aboutRead the answer and worked solution →Compared with dry air, sound travels in moist airRead the answer and worked solution →
Worked practice questions
What is the SI unit of the amplitude of a mechanical wave?
- Hertz
- Metre
- Second
- Newton
Show answer and solution
Correct answer: B. Metre
Amplitude is a largest displacement of a particle from rest, so it is a length measured in metres.
Two successive particles in the same state of vibration are separated by one
- period
- amplitude
- wavelength
- frequency
Show answer and solution
Correct answer: C. wavelength
The spacing between two successive particles in the same phase is by definition the wavelength.
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