Free Progressive Waves MCQs with Answers
72 Progressive Waves MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Progressive waves transfer energy through a medium or space while particles oscillate about their equilibrium positions. The work includes amplitude, wavelength, frequency, period, phase difference, wave speed and the progressive wave equation, while distinguishing travelling waves from stationary waves, where the pattern has fixed nodes and antinodes.
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72 questions · page 4 of 4
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: The formula to calculate the apparent frequency (f°) of a sound wave due to the Doppler effect is given by:f°= (V± Uo/ V± Ui) × fwhere V…
Correct answer: Option B- A. 2-2000 kHz
- B. 15-50000 kHz
- C. 20-20000 Hz
- D. 20-20000 kHz
Explanation: Hearing range describes the range of frequencies that can be heard by humans or other animals, though it can also refer to the range of…
Correct answer: 20-20000 Hz- A. Halved
- B. Doubled
- C. Quadrupled
- D. Remain the same
Explanation: The correct option is C Quadrupled. The energy transported by a wave is directly proportional to the square of the amplitude of the wave.
Correct answer: Quadrupled- A. Vibrate parallel to the direction of propagation of waves
- B. Vibrate perpendicular in to the direction of propagation of waves
- C. Do not move at all
- D. Vibrate at an angle of 360° to the direction of waves
Explanation: Fact. In longitudinal waves the movement of the particle is along the direction of the wave i.e the movement of particles is usually…
Correct answer: Vibrate parallel to the direction of propagation of waves- A. Wavelength squared
- B. Amplitude squared
- C. Square root of the wavelength
- D. Square root of the amplitude
Explanation: Water is a transverse mechanical wave so we know that the power and energy carried by the wave is directly proportional to the square of…
Correct answer: Amplitude squared- A. 0°
- B. 180°
- C. 90°
- D. 45°
Explanation: When the transverse wave travels from the rarer medium to the denser medium, it gets reflected from the denser medium, where a phase…
Correct answer: 180°- A. Polarized
- B. Reflected
- C. Refracted
- D. Diffracted
Explanation: Sound waves are longitudinal waves, meaning their oscillations occur in the same direction as their propagation.
Correct answer: Polarized- A. Directly proportional to the amplitude
- B. Directly proportional to (amplitude)2
- C. Inversely proportional to amplitude
- D. Inversely proportional to (amplitude)2
Explanation: The intensity of a wave is directly proportional to the square of its amplitude (I∝A2).
Correct answer: Directly proportional to (amplitude)2- A. n/1 rad
- B. n/2 rad
- C. 2n/5 rad
- D. 4n/5 rad
Explanation: The phase difference between two points in a wave is given by the formula: ∆φ = 2π∆x/λ.
Correct answer: n/2 rad- A. Amplitude
- B. Wavelength
- C. Speed
- D. Frequency
Explanation: Amplitude of a wave is independent whereas speed wavelength and frequency are all depend on each other via the formulaSpeed = wavelength x…
Correct answer: Amplitude- A. I a = constant
- B. I/a2 = constant
- C. I a2 = constant
- D. I/a = constant
Explanation: The correct relationship between the intensity 'I' and the amplitude 'a' of a wave is option D: l/a2 = constant.
Correct answer: I/a2 = constant- A. 80Hz
- B. 800Hz
- C. 8000Hz
- D. 50Hz
Explanation: The reactance (XL) of an inductor is calculated using the formula XL=2πfL.
Correct answer: 80Hz