NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 248 - 253 of 2184

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Passage

Consider a cylinder of mass M = 1kg 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 1kg on the sphere

Cylinder of Mass 1kg on the Sphere

In above figure cylinder of m = 1kg on the sphere of radius R.

A force F = 55 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: 248 (1 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

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MCQ▾

Question

Calculate the acceleration of cylinder.

Choices

Choice (4) Response

a.

20 m/s 2

b.

10 m/s 2

c.

5 m/s 2

d.

None of the above

Question number: 249 (2 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

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MCQ▾

Question

Find the value of frictional force at A

Choices

Choice (4) Response

a.

5.0 N

b.

7.5 N

c.

2.5 N

d.

None of the above

Question number: 250 (3 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

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MCQ▾

Question

Find the value of frictional force at B

Choices

Choice (4) Response

a.

5.0N

b.

7.5 N

c.

2.5 N

d.

None of the above

Question number: 251

» Electrostatics » Equipotential Surfaces

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MCQ▾

Question

In the figure the charge Q is at the center of the circle. Work done by electrostatic force on q is maximum, when another charge q is taken from point P to ________. (Consider both the charges to be positive)

Circle having Q charge at the center

Circle Having Q Charge at the Center

In figure the charge Q is at the center of the circle. Points P, L, M, N are on this equipotential circle and point K is at outside of the circle

Choices

Choice (4) Response

a.

N

b.

L

c.

M

d.

K

Question number: 252

» Electrostatics » Electric Field Lines

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MCQ▾

Question

A charge particle is free to move in an electric field. It will travel

Choices

Choice (4) Response

a.

Always along a line of force

b.

Along a line of force, if it has some initial velocity in the direction of an acute angle with the line of force

c.

Along a line of force, if its initial velocity is zero

d.

None of the above

Question number: 253

» Laws of Motion » Force and Inertia

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MCQ▾

Question

A car is moving in a circular path of radius 100 m with velocity of 200 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.

100 √17

b.

10 √7

c.

10 √3

d.

100 √3