# 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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