Physics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 125 - 128 of 136

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Question number: 125

» Physics » Motion and Force

MCQ▾

Question

An iron ball and a wooden ball of the same radius are released from the same height in vacuum. They take the same time to reach the ground. The reason for this is

Choices

Choice (4) Response

a.

In vacuum, there is a resistance offered to the motion of the body and this resistance depends upon the mass of the body

b.

Acceleration due to gravity in vacuum depends upon the mass of the body

c.

Acceleration due to gravity in vacuum is same irrespective of the size and mass of the body

d.

There is no acceleration due to gravity in vacuum

Question number: 126

» Physics » Motion and Force

MCQ▾

Question

The velocity-time graph is shown in the figure for a particle. The acceleration of particle is

Velocity-time graph

Velocity-Time Graph

Velocity-time graph for a particle

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 127

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Tendency of an atom in a molecule to attract the shared pair of electron towards itself is known as

Choices

Choice (4) Response

a.

Valency

b.

Electron-affinity (EA)

c.

Ionisation energy (i.e.)

d.

Electronegativity (EN)

Question number: 128

» Physics » Motion and Force

MCQ▾

Question

In uniform circular motion

Choices

Choice (4) Response

a.

The angular velocity varies but the angular momentum remains constant

b.

The angular velocity and the angular momentum vary

c.

The angular velocity and the angular momentum stay constant

d.

The angular momentum varies but the angular velocity remains constant

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