NEET Physics Time Period Frequency Simple Pendulum and Spring Pendulum MCQs Set B

a) 50 J

b) 25 J

c) 100 J

d) 12.5 J

Answer: 50 J

Question:  If a particle takes 0.5 sec to reach position of minimum velocity from previous such position, then

a)

b)

c)

d)

Answer:

Question: A simple harmonic motion has an amplitude A and time period T. The time required by it to travel from x = A to x = A/2 is

a) T/6

b) T/4

c) T/3

d) T/2

Answer:  T/6

Question:

a) T1 < T2

b) T₁ = T₂

c) T₁ = 2T₂

d) T₁ > T₂

Answer: T1 < T2

Question: If the maximum velocity and acceleration of a particle executing SHM are equal in magnitude, the time period will be

a) 6.28 sec

b) 3.14 sec

c) 12.56 sec

d) 1.57 sec

Answer: 6.28 sec

Question: A simple pendulum oscillates in air with time period T and amplitude A. As the time passes

a) T remains same and A decreases

b) None of these

c) T decreases and A is constant

d) T and A both decrease

Answer: T remains same and A decreases

Question: Which of the following will change the time period as they are taken to moon?

a) A simple pendulum

b) A physical pendulum

c) A spring-mass system

d) A torsional pendulum

Answer: A simple pendulum

Question: For an oscillating simple pendulum, the tension in the string is

a) maximum at mean position

b) constant throughout the motion

c) cannot be predicted

d) maximum at extreme position

Answer:  maximum at mean position

Question:  A simple pendulum is set into vibrations. The bob of the pendulum comes to rest after some time due to

a) Air friction

b) Moment of inertia

c) Weight of the bob

d) Combination of all the above

Answer: Air friction

Question: The ratio of energies of oscillations of two exactly identical pendulums oscillating with amplitudes 5 cm and 10 cm is

a) 1 : 4

b) 2 : 1

c) 1 : 2

d) 4 : 1

Answer: 1 : 4

Question: A child swinging on swing in sitting position stands up. The time period of the swing will

a) decrease

b) increase

c) remain same

d) increase if the child is tall and decrease if the child is short.

Answer:  decrease

Question:

a) remain same

b) decrease

c) become zero

d) increase

Answer: remain same

Question:  Select the correct statement(s) from the following
I. Motion of a satellite and a planet is periodic as well as SHM.
II. Mass suspended by a spring executes SHM.
III. Motion of a simple pendulum is always SHM.

a) II only

b) I and II

c) I only

d) I, II and III

Answer:  II only

Question:

a) (K/n) (1 + n)

b) K/(n + 1)

c) K

d) K (1 + n)

Answer:  (K/n) (1 + n)

Question:

a)

b)

c)

d) None of these

Answer:

Question:  A pendulum is undergoing S.H.M. The velocity of the bob in the mean position is v. If now its amplitude is doubled, keeping the length same, its velocity in the mean position will be

a) 2 v

b) v

c) v/2

d) 4 v

Answer:  2 v

Question:  A simple pendulum is made of a body which is a hollow sphere containing mercury suspended by means of a wire. If a little mercury is drained off, the period of pendulum will

a) increase

b) remain unchanged

c) decrease

d) become erratic

Answer: increase

Question:  The bob of a simple pendulum of mass m and total energy E will have maximum linear momentum equal to

a)

b) None of these

c)

d)

Answer:

Question:  Choose the correct statement

a) The graph between length of the pendulum and time period is a parabola.

b) In a simple pendulum time period varies linearly with the length of the pendulum

c) Time shown by a spring watch varies with acceleration due to gravity g.

d) Time period of a simple pendulum depends on amplitude.

Answer:  The graph between length of the pendulum and time period is a parabola.

Question:

a) (A) - (3), (B) - (4), (C) - (2), (D) - (3)

b) (A) - (1), (B) - (2), (C) - (3), (D) - (4)

c) (A) - (4), (B) - (3), (C) - (2), (D) - (1)

d) None of these

Answer:  (A) - (3), (B) - (4), (C) - (2), (D) - (3)

More Questions.............................................

Question:

a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.

b) Assertion is correct, reason is incorrect

c) Assertion is incorrect, reason is correct

d) Assertion is correct, reason is correct; reason is not a correct explanation for assertion.

Answer: Assertion is correct, reason is correct; reason is a correct explanation for assertion.

Question:  A particle executing simple harmonic motion covers a distance equal to half of its amplitude in one second. Then the time period of the simple harmonic motion is

a) 12 s

b) 8 s

c) 6 s

d) 4 s

Answer: 12 s

Question: The maximum velocity of a particle, executing simple harmonic motion with an amplitude 7 mm, is 4.4 m/s. The period of oscillation is

a) 0.01 s

b) 10 s

c) 0.1 s

d) 100 s

Answer: 0.01 s

Question:  A body is executing S.H.M. When its displacement from the mean position are 4 cm and 5 cm, it has velocities 10 cm s^–1 and 8 cm s^–1 respectively. Its periodic time is

a)

b)

c)

d)

Answer:

Question:

a) 0.5 s

b) 0.125 s

c) 0.75 s

d) 0.25 s

Answer:  0.5 s

Question:

a)

b)

c)

d)

Answer:

Question:  Two pendulums of lengths 1.44 m and 1 m start to swing together. The number of vibrations after which they will again start swinging together is

a) 5

b) 2

c) 3

d) 4

Answer: 5

Question: When two springs A and B with force constants k_A and k_B are stretched by the same force, then the respective ratio of the work done on them is

a) k_B : k_A

b) k_A : k_B

c) k_Ak_B : 1

d) None of these

Answer:  k_B : k_A

Question:

a) 5T

b) 3T

c) 4T

d) 6T

Answer: 5T

Question:  The length of a simple pendulum executing simple harmonic motion is increased by 21%. The percentage increase in the time period of the pendulum of increased length is

a) 10%

b) 42%

c) 21%

d) 11%

Answer:  10%

Question:

a)

b) None of these

c)

d)

Answer:

Question:

a) (A) - (2), (B) - (3), (C) - (4), (D) - (1)

b) (A) - (1), (B) - (4), (C) - (3), (D) - (2)

c) (A) - (1), (B) - (2), (C) - (3), (D) - (4)

d) (A) - (2), (B) - (3), (C) - (1), (D) - (4)

Answer: (A) - (2), (B) - (3), (C) - (4), (D) - (1)

Question:

a) a = 5, T = 2

b) a = 10, T = 1

c) a = 5, T = 1

d) None of these

Answer:  a = 5, T = 2

Question:  What will be the force constant of the spring system shown in figure?

a)

b) None of these

c)

d)

Answer:

Question:

a)

b) None of these

c)

d)

Answer:

Question:  The height of liquid column in a U tube is 0.3 m. If the liquid in one of the limbs is depressed and then released, then the time period of the liquid column will be

a) 1.1 sec

b) 2 sec

c) 19 sec

d) 0.11 sec

Answer:  1.1 sec

Question:

a)

b)

c)

d) None of these

Answer:

Question:  On earth, a body suspended on a spring of negligible mass causes extension L and undergoes oscillations along length of the spring with frequency f. On the Moon, the same quantities are L/n and f ' respectively. The ratio f '/f is

a) 1

b) n^–1/2

c) n 

d)

Answer:  1

Question:   A second’s pendulum is placed in a space laboratory orbiting around the earth at a height 3 R from the earth’s surface where R is earth’s radius. The time period of the pendulum will be

a) infinite

b) zero

c) 4 sec

d)

Answer:  infinite

Question:

a)

b)

c) None of these

d)

Answer:

Question:

a)  t = 2t₀

b) t = 4t₀

c) t = t₀/2

d) t = t₀

Answer: t = 2t₀

Question:  A wall clock uses a vertical spring-mass system to measure the time. Each time the mass reaches an extreme position, the clock advances by a second. The clock gives correct time at the equator. If the clock is taken to the poles it will

a) give correct time

b) run slow

c) stop working

d) run fast

Answer:  give correct time

Question:

a)

b)

c)

d) None of these

Answer:

Question:

a) 39 cm

b) 26 cm

c) 65 cm

d) 52 cm

Answer:  39 cm

Question:

a)

b)

c)

d)

Answer:

Question:

a)

b)

c)

d)

Answer:

Question: Time period of a simple pendulum attached with the celling of a lift falling freely is

a)

b) 1 sec

c) None of these

d) 0

Answer:

Question:

a)

b)

c)

d)

Answer:

Question:

a)

b)  None of these

c)

d)

Answer:

Question:

a) 6/5

b) 5/6

c) 1

d) 4/5

Answer:  6/5

Question:

a)

b)

c)

d) None of these

Answer:

Question:  A rod of mass M and length L is hinged at its centre of mass so that it can rotate in a vertical plane. Two springs each of stiffness k are connected at its ends, as shown in the figure. The time period of SHM is

a)

b)

c)

d)

Answer:

Question:

a)

b)

c)

d)

Answer:

Question:

a)

b)

c)

d)

Answer:

Question:

a)

b)

c)

d)

Answer: