MERIT YARD

Class 11th Physics - Oscillations - MERIT YARD

Question 1 / 40In Simple Harmonic Motion (SHM), the restoring force is proportional to:

A) Displacement

B) Velocity

C) Time

D) Mass

Question 2 / 40The time period of a simple pendulum depends on:

A) Mass of bob

B) Length of pendulum

C) Amplitude

D) Material of bob

Question 3 / 40At the mean position of SHM, the velocity of the particle is:

A) Zero

B) Minimum

C) Negative

D) Maximum

Question 4 / 40The SI unit of frequency is:

A) Hertz

B) Second

C) Joule

D) Newton

Question 5 / 40Which of the following is the phase difference between velocity and displacement in SHM?

A) 0

B) π/2

C) π

D) 2π

Question 6 / 40The potential energy of a particle in SHM is maximum at:

A) Mean position

B) Extreme position

C) Half of amplitude

D) Never maximum

Question 7 / 40If the length of a simple pendulum is made 4 times, its time period becomes:

A) 4 times

B) 2 times

C) 16 times

D) Half

Question 8 / 40In SHM, the acceleration is maximum at:

A) Mean position

B) Extreme position

C) Center

D) All points

Question 9 / 40The total energy of a particle executing SHM is proportional to:

A) Amplitude

B) Square of amplitude (A²)

C) Velocity

D) Time

Question 10 / 40The relation between angular frequency (ω) and frequency (f) is:

A) ω = 2πf

B) ω = πf

C) ω = f/2π

D) ω = 2f

Question 11 / 40A seconds pendulum has a time period of:

A) 1 second

B) 2 seconds

C) 0.5 second

D) 4 seconds

Question 12 / 40The motion of a simple pendulum is SHM only if the angle of swing is:

A) Small

B) 90°

C) Large

D) 180°

Question 13 / 40The time period of a spring-mass system is T = 2π√(m/k). If mass is doubled, T becomes:

A) 2T

B) √2 T

C) T/2

D) 4T

Question 14 / 40Which of the following represents a periodic but NOT oscillatory motion?

A) Simple pendulum

B) Motion of spring

C) Rotation of Earth

D) Vibrating string

Question 15 / 40Phase difference between acceleration and displacement in SHM is:

A) π/2

B) π

C) 2π

D) 0

Question 16 / 40A particle is in SHM with amplitude 5 cm. At what displacement is its K.E. equal to P.E.?

A) 5 cm

B) 2.5 cm

C) 5/√2 cm

D) 0 cm

Question 17 / 40The kinetic energy of a particle in SHM is maximum at:

A) Mean position

B) Extreme position

C) Amplitude

D) Start of motion

Question 18 / 40The graph between acceleration and displacement in SHM is a:

A) Parabola

B) Circle

C) Straight line

D) Hyperbola

Question 19 / 40When frequency of external force matches natural frequency, it is called:

A) Damping

B) Resonance

C) Oscillation

D) SHM

Question 20 / 40The time period of a simple pendulum at the center of the Earth is:

A) Zero

B) 1 second

C) 2 seconds

D) Infinite

Question 21 / 40If a hole is bored through the center of the Earth, a ball dropped will execute:

A) SHM

B) Linear motion

C) Circular motion

D) No motion

Question 22 / 40Maximum displacement from mean position is called:

A) Velocity

B) Amplitude

C) Phase

D) Frequency

Question 23 / 40In a damped oscillation, the amplitude of oscillation:

A) Increases

B) Decreases exponentially

C) Remains same

D) Becomes infinite

Question 24 / 40The restoring force constant 'k' of a spring has dimensions:

A) [MT^-2]

B) [MLT^-2]

C) [ML²T^-2]

D) [MT^-1]

Question 25 / 40The time period of a simple pendulum inside a satellite orbiting Earth is:

A) 2 seconds

B) Zero

C) Infinite

D) 1 second

Question 26 / 40Potential energy of SHM is U = ½ kx². Its value at mean position is:

A) Zero

B) Maximum

C) ½ kA²

D) Negative

Question 27 / 40Which of the following is the differential equation for SHM?

A) d²x/dt² + ω²x = 0

B) dx/dt + ωx = 0

C) d²x/dt² - ω²x = 0

D) d²x/dt² = ωx

Question 28 / 40The number of oscillations per unit time is:

A) Time period

B) Frequency

C) Amplitude

D) Phase

Question 29 / 40For a particle in SHM, at which point is acceleration zero?

A) Mean position

B) Extreme position

C) Amplitude

D) Nowhere

Question 30 / 40Work done in one complete oscillation in SHM is:

A) ½ kA²

B) kA²

C) Zero

D) Infinite

Question 31 / 40If the frequency of a particle in SHM is 10 Hz, its time period is:

A) 10 s

B) 0.1 s

C) 1 s

D) 100 s

Question 32 / 40Force constant 'k' of a spring depends on:

A) Mass attached

B) Length of swing

C) Material and geometry of spring

D) Gravity

Question 33 / 40Acceleration in SHM is a = -ω²x. The negative sign shows that:

A) Force is zero

B) Force is directed towards mean position

C) Motion is slowing down

D) Displacement is zero

Question 34 / 40Kinetic energy in SHM at displacement 'x' is given by:

A) ½ k(A² - x²)

B) ½ kx²

C) ½ kA²

D) Zero

Question 35 / 40Length of a seconds pendulum on Earth is approximately:

A) 0.5 m

B) 1 meter

C) 2 meters

D) 9.8 meters

Question 36 / 40The motion of a piston in an automobile engine is:

A) Periodic but not oscillatory

B) Oscillatory

C) Rotational

D) Random

Question 37 / 40Total energy in SHM remains:

A) Constant

B) Variable

C) Zero

D) Maximum at extremes only

Question 38 / 40A simple pendulum is taken to the Moon, its time period will:

A) Increase

B) Decrease

C) Remain same

D) Become zero

Question 39 / 40Springs are used in shock absorbers of cars to produce:

A) Damped oscillations

B) SHM

C) High frequency

D) Resonance

Question 40 / 40In SHM, the maximum acceleration is:

A) ωA

B) ω²A

C) ω/A

D) Zero

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