Free Waves MCQs with Answers
1,281 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 oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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1,281 questions · page 25 of 65
- A. MR2
- B. 1/2 MR2
- C. 2/5 MR2
- D. 1/2 M2R
Explanation: Please note that the correct option for the moment of inertia of a sphere is c) (2/5)MR2.
Correct answer: 2/5 MR2- A. Linear momentum is constant
- B. Velocity is constant
- C. It moves in a circular path
- D. Particle moves in a straight line
Explanation: Please note that the correct option for the motion of the particle is c) It moves in a circular path.The force acting perpendicular to the…
Correct answer: It moves in a circular path- A. Constant acceleration
- B. Variable acceleration
- C. Constant retardation
- D. Variable speed and constant velocity
Explanation: In uniform circular motion, the acceleration is variable. The centripetal acceleration remains constant in magnitude but changes direction…
Correct answer: Variable acceleration- A. There is no gravity in space
- B. There is no floor pushing upwards on them
- C. Satellite is freely falling
- D. There is no air in space
Explanation: Astronauts aboard the International Space Station (ISS) or other spacecraft are in a state of constant free fall around the Earth.
Correct answer: Satellite is freely falling- A. Velocity
- B. K.E
- C. Angular momentum
- D. Potential Energy
Explanation: The angular momentum of a satellite in orbit is constant. Angular momentum is a conserved quantity, and for an isolated system like a…
Correct answer: Angular momentum- A. Decrease
- B. Remain changed
- C. Increase
- D. Become zero
Explanation: Please note that the correct option for the effect on 'g' at the equator if the Earth suddenly stops rotating is c) Increase.
Correct answer: Increase- A. Solid sphere
- B. Solid cylinder
- C. The one that has the largest mass arrives first
- D. The one that has the largest radius arrives first
Explanation: Please note that the correct option for the object with the greater moment of inertia is a) Solid sphere.
Correct answer: Solid sphere- A. Larger
- B. Exactly the same
- C. Smaller
- D. Nearly but not exactly zero
Explanation: Please note that the correct option for the gravitational force on the astronaut in the International Space Station (ISS) is c) Smaller.
Correct answer: Smaller- A. Two times.
- B. Four times.
- C. Six times.
- D. Eight times.
Explanation: The time period T of a simple pendulum is given by the equation:T = 2π√(L/g)where L is the length of the pendulum and g is the…
Correct answer: Two times.- A. -mgθ
- B. -mg
- C. mgθ
- D. mg
Explanation: In a simple pendulum executing simple harmonic motion, the restoring force is given by the formula F = -mgθ, where θ is the angular…
Correct answer: -mgθ- A. T/3
- B. T
- C. 3T
- D. √3T
Explanation: The time period of a simple pendulum is given by the formula T = 2π√(L/g), where L is the length of the pendulum and g is the acceleration…
Correct answer: T- A. I only.
- B. III only.
- C. I and II.
- D. II and III.
Explanation: The expression kx²/2 is a form of energy that can be interpreted in the context of a simple pendulum's motion.
Correct answer: II and III.- A. Linear
- B. Rotatory
- C. Circulatory
- D. Simple harmonic
Explanation: When a particle moves in a circle with uniform speed and its motion is projected onto a diameter of the circle, the projection exhibits…
Correct answer: Simple harmonic- A. I only.
- B. III only.
- C. I and II.
- D. II and III.
Explanation: The correct answer is III only. Shock absorbers are designed to create damped oscillation.
Correct answer: III only.- A. Increases
- B. Decreases
- C. Becomes zero
- D. Remains the same.
Explanation: The time period of a simple pendulum is determined by the formula T = 2π√(L/g), where L is the length of the pendulum and g is the…
Correct answer: Remains the same.- A. Reduce to half.
- B. Remain the same.
- C. Increase two times.
- D. Decrease four times.
Explanation: The time period of a simple pendulum is given by the formula T = 2π√(L/g), where L is the length of the pendulum and g is the acceleration…
Correct answer: Remain the same.- A. Free oscillation.
- B. Forced oscillation.
- C. Damped oscillation.
- D. Undamped oscillation.
Explanation: The correct answer is damped oscillation. Shock absorbers are designed to reduce the amplitude of vibrations caused by uneven surfaces by…
Correct answer: Damped oscillation.- A. Be zero.
- B. Be minimum.
- C. Be maximum.
- D. Remain constant.
Explanation: In the oscillation of a simple pendulum, energy is continuously exchanged between kinetic and potential forms.
Correct answer: Be maximum.- A. Prongs of a tuning fork.
- B. Bob of a simple pendulum.
- C. Motion of a child on a swing.
- D. Vibrating wire of a sonometer.
Explanation: Free oscillation refers to the motion of a system that occurs at its natural frequency after an initial disturbance, without any external…
Correct answer: Motion of a child on a swing.- A. I and III
- B. I and IV.
- C. II and III.
- D. II and IV.
Explanation: The period of a simple pendulum is given by the formula T = 2π√(L/g), where T is the time period, L is the length of the pendulum, and g…
Correct answer: II and III.