Oscillations and Waves-Periodic Functions (NEET Physics): Questions 19 - 21 of 21

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Question number: 19

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

Which of the following are not corrected to make period of simple pendulum two times:

(a) its length is doubled

(b) the mass of the bob is doubled

(C) the mass of the bob and the length of the pendulum are doubled

(d) its length is made four times

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 3 are correct

c.

1 and 2 are correct

d.

1, 2 and 3 are correct

Question number: 20

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

The motion of a particle is expressed by the equation a=bX , where a is the acceleration, X is the distance from the equilibrium position and b is a constant. The periodic time will be:

Choices

Choice (4) Response

a.

2πb

b.

2πb

c.

2πb

d.

2πb

Question number: 21

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

Two masses m 1 and m 2 are suspended together by a massless spring of constant k. When the masses are in equilibrium, m 1 is removed without disturbing the system. The amplitude of oscillations is,

Choices

Choice (4) Response

a.

m1gk

b.

(m1+m2)gk

c.

(m1m2)gk

d.

m2gk

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