Oscillations and Waves-Simple Harmonic Motion (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 6 - 9 of 37

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Question number: 6

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

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MCQ▾

Question

Three masses 600g, 300g, and 200g are suspended at the end of a spring are in equilibrium. When the 600g mass is removed, the system oscillates with a period of 4 seconds, when the 300 gm mass is also removed, it will oscillate with a period of

Choices

Choice (4) Response

a.

2 s

b.

1 s

c.

d.

2.53 s

Question number: 7

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

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MCQ▾

Question

A spring having a spring constant k is loaded with a mass m. The spring is cut into two equal parts and one of these is loaded again with the same mass. The new spring constant is,

Choices

Choice (4) Response

a.

k

b.

c.

d.

Question number: 8

» Oscillations and Waves » Simple Harmonic Motion » Energy

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MCQ▾

Question

A particle constrained to move along the x-axis in a potential V = kx 2, is subjected to an external time dependent force f (t), here k is a constant, x is the distance from the origin and t is the time. At some time T, when the particle has zero velocity at x = 0, the external force is removed. Choose the incorrect options -

(1) Particle executes SHM

(2) Particle moves along + X direction

(3) Particle moves along - X direction

(4) Particle remains at rest

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

2 and 4 are correct

b.

1 and 2 are correct

c.

1 and 3 are correct

d.

1,2 and 3 are correct

Question number: 9

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

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MCQ▾

Question

A mass m is suspended from the two coupled springs connected in series. The force constant for springs are k 1 and k 2 . The time period of the suspended mass will be,

Choices

Choice (4) Response

a.

b.

c.

d.

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