Physics [NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension]: Questions 27 - 33 of 136

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Question 27

Question MCQ▾

An instrument used to measure humidity is

Choices

Choice (4)Response

a.

Thermometer

b.

Anemometer

c.

Pyrheliometer

d.

Hygrometer

Edit

Question 28

Question MCQ▾

The orbital speed of Jupiter is

Choices

Choice (4)Response

a.

Zero

b.

equal to the orbital speed of the Earth

c.

less than the orbital speed of the Earth

d.

greater than the orbital speed of the Earth

Edit

Question 29

Question MCQ▾

A current flows in a conductor from East to West. The direction of the magnetic field at a point above the conductor is

Choices

Choice (4)Response

a.

towards North

b.

towards West

c.

towards South

d.

towards East

Edit

Question 30

Question MCQ▾

The lines of force of uniform magnetic field

Choices

Choice (4)Response

a.

must be convergent

b.

intersect

c.

must be parallel to each other

d.

must be divergent

Edit

Question 31

Question MCQ▾

In a transformer, number of turns in the primary are 140 and that in secondary are 280. If current in primary is 4 A, then current in secondary is

Choices

Choice (4)Response

a.

2A

b.

10A

c.

6A

d.

4A

Edit

Question 32

Question MCQ▾

Two thin lenses of focal lengths f1 and f2 are placed in contact. The focal length of the composite lenses will be

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 33

Question MCQ▾

Figure shows when the as shown two rays A and B being reflected by a mirror and going as A ‘and B’ . The mirror is

Two Rays Reflected by the Mirror

Choices

Choice (4)Response

a.

is concave

b.

is plane

c.

may be any spherical mirror

d.

is convex

Edit