NEET Physics: Questions 1658 - 1660 of 2099

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Question number: 1658

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

A particle executes simple harmonic motion with an angular velocity and maximum acceleration of 2.5 rad/sec and 5.5 m/s 2 respectively. The amplitude of oscillation is,

Choices

Choice (4) Response
a.

1.04 m

b.

0.77 m

c.

0.88 m

d.

0.28 m

Question number: 1659

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

The length of a second’s pendulum is 7 m. The spherical bob which is empty from inside has a mass of 150 gm. This is now replaced by another solid bob of same radius but having different mass of 100 gm. The new time period will be

Choices

Choice (4) Response
a.

4.43 sec

b.

2.38 sec

c.

4 sec

d.

5.30 sec

Question number: 1660

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

Identify wrong statements among the following,

(1) The greater the mass of a pendulum bob, the shorter is its frequency of oscillation

(2) A simple pendulum with a bob of mass m swings with an angular amplitude of 40°. When its angular amplitude is 20°, the tension in the string is less than mg cos 20 0.

(3) As the length of a simple pendulum is increased, the maximum velocity of its bob during its oscillation will also increase.

(4) The fractional change in the time period of a pendulum on changing the temperature is independent of the length of the pendulum.

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

Choices

Choice (4) Response
a.

1 and 3 are correct

b.

2 and 4 are correct

c.

1 and 2 are correct

d.

1, 2 and 3 are correct

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