NEET Physics: Questions 224 - 228 of 2099

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Passage

Consider a cylinder of mass M = 1 kg and radius R = 1 m lying on a rough horizontal plane. It has a plank lying on its top as shown in the figure.

Cylinder of mass 1 kg and Radius 1 meter on the sphere

Cylinder of Mass 1 Kg and Radius 1 Meter on the Sphere

in above fig cylinder of m = 1kg on the sphere of radius R.

A force F = 35 N is applied on the plank such that the plank moves and causes the cylinder to roll. The plank always remains horizontal. There is no slipping at any point of contact.

Question number: 224 (1 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

MCQ▾

Question

Find the value of frictional force at B

Choices

Choice (4) Response
a.

2.5 N

b.

5.0N

c.

4.5 N

d. All of the above

Question number: 225 (2 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

MCQ▾

Question

Calculate the acceleration of cylinder.

Choices

Choice (4) Response
a.

20 m/s 2

b.

10 m/s 2

c.

6.36 m/s 2

d. Question does not provide sufficient data or is vague

Question number: 226 (3 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

MCQ▾

Question

Find the value of frictional force at A

Choices

Choice (4) Response
a.

2.5 N

b.

7.5 N

c.

4.77 N

d. Question does not provide sufficient data or is vague

Question number: 227

» Electrostatics » Electric Potential

MCQ▾

Question

Two identical thin rings each of radius R meters are coaxially placed at a distance R meters apart. If Q 1 coulomb and Q 2 coulomb are respectively the charges uniformly spread on the two rings, the work done by external agent in moving a charge q slowly from the center of ring with charge Q1 to that of other is,

Choices

Choice (4) Response
a.

q(Q1Q2)(2+1)24πϵ0R

b.

Zero

c.

q(Q2+Q1)(2+1)4πϵ0R

d. Question does not provide sufficient data or is vague

Question number: 228

» Electrostatics » Capacitors

MCQ▾

Question

Between the plates of a parallel plate condenser, a plate of thickness t 1 and dielectric constant K 1 is placed. In the rest of the space, there is another plate of thickness t 2, and dielectric constant K 2. The potential difference across the condenser will be,

Choices

Choice (4) Response
a.

Qϵ0A(t1K1+t2K2)

b.

ϵ0QA(K1t1+K2t2)

c.

QAϵ0(t1K1+t2K2)

d.

QAϵ0(K1t1+K2t2)

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