Physics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 120 - 125 of 136

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Question number: 120

» Physics » Motion and Force

MCQ▾

Question

A proton enters a magnetic field of flux density with a speed of at an angle of with the field. The force on a proton will be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 121

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Hysteresis loss for steel is……that for iron.

Choices

Choice (4) Response

a.

Greater than

b.

Less than

c.

Equal to

d.

All of the above

Question number: 122

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

A wire of resistance R is elongated n-fold to make a new uniform wire. The resistance of new wire

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 123

» Physics » Motion and Force

MCQ▾

Question

Which of the following velocity-time graphs represent uniform motion?

Choices

Choice (4) Response

a.

The slope of a velocity-time graph : Choice A

The Slope of a Velocity-Time Graph: Choice A

The slope of a velocity-time graph

b.

The slope of a velocity-time graph : Choice B

The Slope of a Velocity-Time Graph: Choice B

The slope of a velocity-time graph

c.

The slope of a velocity-time graph : Choice C

The Slope of a Velocity-Time Graph: Choice C

The slope of a velocity-time graph

d.

The slope of a velocity-time graph : Choice D

The Slope of a Velocity-Time Graph: Choice D

The slope of a velocity-time graph

Question number: 124

» Physics » Light

MCQ▾

Question

A prism can have a maximum refracting angle of

Choices

Choice (4) Response

a.

b.

1 c

c.

d.

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

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