Oscillations and Waves-Simple Harmonic Motion (NEET Physics): Questions 9 - 11 of 37

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Question number: 9

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

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.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 10

» Oscillations and Waves » Simple Harmonic Motion » Energy

MCQ▾

Question

Three simple harmonic motions in the same direction having the same amplitude a and same period are superposed. If each differs in phase from the next by 45°, then -

(1) The resultant amplitude is Equation , and the phase of the resultant motion relative to the first is 90°

(2) The energy associated with the resulting motion is

(3) Times the energy associated with any single motion

(4) The resulting motion is not simple harmonic

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

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

1 and 3 are correct

c.

1, 2 and 3 are correct

d.

2 and 4 are correct

Question number: 11

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

MCQ▾

Question

A particle of mass m is attached to three identical springs A, B and C each of force constant k. If the particle of mass m is pushed slightly against the spring A and released then the time period of oscillations is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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