1st Year Physics Chapter Seven Oscillations MCQs Quiz Test

If you are looking first Year Chapter Seven Physics OSCILLATIONS Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

1st Year Physics Chapter Seven Oscillations MCQs

On this website you will learn first Year Physics Unit Seven OSCILLATIONS MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of OSCILLATIONS.

Important Key Points You Will Learn in Chapter Seven:

• Simple Harmonic Motion (SHM)
• SHM and Uniform Circular Motion
• Phase
• Horizontal Mass Spring System
• Simple Pendulum
• Energy Conservation in SHM
• Free and Forced Oscillations
• Resonance
• Damped Oscillations
• Sharpness of Resonance

Q.1: In vibratory motion?

1. P.E remains constant
2. K.E remains constant
3. Total energy remains constant
4. Total momentum remains constant

C

Q.2: The waveform of S.H.M. is?

1. Standing wave
2. Sine wave
3. Square wave
4. Rectangular waves

B

Q.3: If the spring constant is halved then the new constant will be?

1. 3k
2. 2k
3. 4k
4. k/2

C

Q.4: In S.H.M. the velocity of a particle is maximum at?

1. Mean position
2. Extreme position
3. The middle between mean and extreme position on the right side
4. The middle between mean and extreme position on the left side

A

Q.5: The acceleration of a projection on the diameter of a particle moving along a circle is?

1. ω²x
2. ωx²
3. – ω²x
4. – ωx²

C

Q.6: The total energy of a body executing S.H.M. is directly proportional to?

1. The square root of amplitude
2. The amplitude
3. Reciprocal of amplitude
4. Square of amplitude

D

Q.7: The time period of a second’s pendulum is?

1. 4 seconds
2. 3 seconds
3. 2 seconds
4. 6 seconds

C

Q.8: The length of a simple pendulum on the surface of Earth is 1m, its length on the surface of the moon, where g is 1/6^th value of g on the earth is?

1. Remain the same
2. 6m
3. 1/6m
4. 1/36m

C

Q.9: If the length of a pendulum becomes four times, then its time period will become?

1. Four times
2. Six times
3. Eight times
4. Two times

D

Q.10: Is the force responsible for the vibratory motion of the simple pendulum is?

1. mg cos θ
2. mg sin θ
3. mg tan θ
4. mg

A

Q.11: The tension in the string of simple pendulum is?

1. Constant
2. Maximum at the extreme position
3. Maximum at the mean position
4. Zero at the mean position

C

Q.12: The wave produced in the microwave oven has a wavelength of?

1. 12 m
2. 1.2 cm
3. 12cm
4. 12 μm

C

Q.13: The SI unit of force constant is identical to that of?

1. Force
2. Pressure
3. Surface tension
4. Loudness

C

Q.14: When the amplitude of an SHM becomes double, its energy becomes?

1. Double
2. Four times
3. One half
4. None time

B

Q.15: A simple pendulum suspended from the ceiling of a lift has a time period T when the lift is at rest. When the lift falls freely than its:?

1. Time period becomes zero
2. Acceleration becomes zero
3. Vibration is stopped
4. Frequency becomes infinity

C

Q.16: The energy of SMH is maximum at?

1. Mean position
2. Extreme position
3. In between mean and extreme
4. All position during SHM

D

Q.17: If a hollow bob of a simple pendulum be filled with mercury that drains out slowly, its time period?

1. Increase continuously
2. Decreases continuously
3. Remain the same
4. First increases then decrease

D

Q.18: The displacement of SHM is written as x = x₀ sinωt. If displacement is written by x = x₀ cos ωt then phase constant will be equal to?

1. 0°
2. 45°
3. 90°
4. 180°

C

Q.19: For what displacement the P.E of SHM becomes ¼ of its maximum value?

1. x = x₀
2. x = x₀/2
3. x = x₀/4
4. x = x₀²/2

B

Q.20: K.E and P.E of a spring-mass system executing SHM become equal at with displacement? (A being the amplitude)?

1. ± √2A
2. ±1/ √2 A
3. ± 1/2A
4. 1/ √2 A

B

Q.21: Which one does not work according to resonance?

1. T.V
2. Radio
3. Microwave oven
4. Bulb

D

Q.22: Which of the given equation is correct in SHM?

1. T.E = ½ kx₀²
2. T.E  = K.E_max
3. T.E = P.E_max
4. All are correct

D

Q.23: The phase of SHM describes?

1. Displacement only
2. The direction of motion only
3. Both displacement and direction of motion
4. Neither displacement nor direction of motion

C

Q.24: The natural frequency of a simple pendulum depends upon?

1. It’s mass
2. It’s length
3. Square of its length
4. The square root of its length

D

Q.25: Electrical resonance is observed in?

1. Radio
2. Microwave oven
3. Both in radio and microwave oven
4. Neither in radio nor in a microwave oven

A

Q.26: Total distance traveled by a bob of a simple pendulum in one vibration is equal to?

1. Amplitude
2. Square of amplitude
3. Twice of amplitude
4. Four times of amplitude

Four times of amplitude

Q.27: When K.E energy of SHM is maximum, its?

1. P.E is zero
2. Acceleration is zero
3. Restoring force is zero
4. All P.E acceleration restoring force are zero

D

Q.28: In damped harmonic oscillation, which one decreases?

1. Amplitude of vibration
2. Energy of vibration
3. Both amplitude and energy
4. Neither amplitude nor energy

C

Q.29: Forced vibrations are known as?

1. Simple harmonic vibration
2. Natural vibration
3. Driven harmonic vibration
4. Free vibration

Driven harmonic vibration

Q.30: Do mechanical springs behave like?

1. Resistances
2. RC – series circuit
3. Capacitances
4. None of these

B

Q.31: At Murree Hills (Assume the value of g changes). If we use a simple pendulum as a time standard then the one-second duration will?

1. Increase
2. Decrease
3. Remain the same
4. Is zero

A

Q.32: SMH described by x = cos(t), has frequency of?

1. 2πHz
2. 1/2π Hz
3. πHz
4. Cannot be predicted

B

Q.33: The projection of the particle moving in a circle with non-uniform angular speed executes?

1. S.H.M.
2. Vibratory motion
3. Both b and d
4. None S.H.M.

D

Q.34: If an oscillator starts vibrating from negative extreme, its phase constant will be?

1. π/2rad
2. πrad
3. 3π/2 rad
4. 0°

C

Q.35: For a simple pendulum, the restoring force is caused by?

1. Gravity
2. Spring
3. Hand
4. All of these

A

Q.36: The distance covered by a body in one complete vibration is 20cm. What is the amplitude of the body?

1. 10cm
2. 5cm
3. 15cm
4. 7.5cm

B

Q.37: If the mass of the spring-mass oscillator becomes half the squared frequency will be?

1. Quadruple
2. Half
3. Double
4. Remain the same

C

Q.38: In the case of a simple pendulum, the cause of damping is?

1. Drag force of air
2. Gravity
3. Tension in string
4. None of these

A

Q.39: The energy absorbed by a body is _________ at resonance?

1. Maximum as well minimum
2. Minimum only
3. Maximum only
4. Zero

C