Physics (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 9 - 12 of 73

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Question number: 9

» Physics » Measurement

Appeared in Year: 2013

MCQ▾

Question

A hypothetical planet has density Equation . radius R, and surface gravitational acceleration g. If the radius of the planet was doubled, but the planetary density stayed the same, the acceleration due to gravity at the planet’s surface would be:

Choices

Choice (4) Response

a.

4g

b.

g/2

c.

g

d.

2g

Question number: 10

» Physics » The Universe

MCQ▾

Question

Atmospheric pressure at the center of a tropical cyclone is

Choices

Choice (4) Response

a.

normal

b.

very high

c.

zero

d.

very low

Question number: 11

» Physics » Light

MCQ▾

Question

Consider the following statements

I. Concave mirror forms virtual and enlarged image of a real object placed very near to it, so it is used by dentists to examine teeth.

II. Concave lens always form virtual image of smaller size of a real object and it is thinner in middle.

III. Plane mirror always forms virtual image of the same size of a real object.

IV. Convex mirror always forms virtual image of bigger size of a real object.

V. Convex lens forms real and diminished image of a real object placed near to it, so it is used as reading glass.

Which of the above statements is/are correct ?

Choices

Choice (4) Response

a.

I, II and III

b.

II and III

c.

IV and V

d.

All of the above

Question number: 12

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

The pattern in which the iron filings will align, if a current carrying straight conductor is kept in the mid of iron filling, is

Choices

Choice (4) Response

a.

remain as such

b.

concentric circle

c.

zig-zag manner

d.

straight line

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