NEET Physics: Questions 331 - 335 of 2099

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Question number: 331

» Rotational Motion » Angular Momentum

MCQ▾

Question

A particle performs uniform circular motion with an angular momentum L. If the frequency of a particle’s motion is doubled and its kinetic energy is halved, the angular momentum becomes.

Choices

Choice (4) Response
a.

L/2

b.

4 L

c.

L/4

d.

2 L

Question number: 332

» Laws of Motion » Force and Inertia

MCQ▾

Question

A car is moving in a circular path of radius 50 m with velocity of 100 m/sec such that in each sec its velocity increases by 100 m/s, the net acceleration of car will be - (in m/sec)

Choices

Choice (4) Response
a.

300.10

b.

10.70

c.

100.20

d.

223.60

Question number: 333

» Electrostatics » Electric Flux

MCQ▾

Question

4 charge q is placed at the center of a cube. Then the flux passing through one face of cube will be

Choices

Choice (4) Response
a.

qϵ0

b.

q2ϵ0

c.

q6ϵ0

d.

q4ϵ0

Question number: 334

» Laws of Motion » Force and Inertia

MCQ▾

Question

An aircraft loops the loop of radius R = 600 m with a constant velocity v = 360 km/h. The weight of the flyer of mass m = 60 kg in the lower, upper and middle points of the loop will respectively be

Choices

Choice (4) Response
a.

210 N, 700 N, 1400 N

b.

1600 N, 400 N, 1000 N

c.

700 N, 1400 N, 210 N

d.

2100 N, 700 N, 1400 N

Question number: 335

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

A simple pendulum has a time period T. The bob is now given some positive charge -

(1) If some positive charge is placed at the point of suspension, T will increases

(2) If some positive charge is placed at the point of suspension, T will not change

(3) If a uniform downward electric field is switched on, T will increase

(4) If a uniform downward electric field is switched on, T will decrease

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

Choices

Choice (4) Response
a.

1 and 3

b.

1 and 2

c.

1, 2 and 3

d.

2 and 4

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