NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 419 - 422 of 2320

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Question number: 419

» Kinematics » Uniform and Non-Uniform Motion

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MCQ▾

Question

A fire man has to carry an injured person of mass 30 kg from the top of a building with the help of the rope which can withstand a load of 150 kg. The acceleration of the

Fireman if his mass is 50 kg, will be

Choices

Choice (4)Response

a.

8.575 m/s 2

b.

9.8 m/s 2

c.

2.63 m/s 2

d.

17.97 m/s 2

Question number: 420

» Electrostatics » Forces between Two Point Charges

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Direction of electric field at a point signifies direction of force experienced by a point charge placed at that point.

Reason (Ꭱ)

Electric field is a vector quantity.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

Question number: 421

» Laws of Motion » Force and Inertia

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MCQ▾

Question

A body of mass m tied at the end of a string of length i is projected with velocity , at what height will it leave the circular path –

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 422

» Electrostatics » Equipotential Surfaces

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MCQ▾

Question

A uniform electric field pointing in positive x - direction exists in a region. Let A be the origin, B be the point on the x - axis at x =+1 cm and C be the point on the y - axis at y =+1 cm. Then the potentials at the points A, B and C satisfy

Choices

Choice (4)Response

a.

V A < V C

b.

V A < V B

c.

V A > V C

d.

V A > V B

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