Physics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 107 - 111 of 133

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Question number: 107

» Physics » Motion and Force

MCQ▾

Question

Why the dam of water reservoir is thick at the bottom?

Choices

Choice (4) Response

a.

Pressure of water increase with depth

b.

Density of water increases with depth

c.

Temperature of water increase with depth

d.

Quantity of water increases with depth

Question number: 108

» Physics » Motion and Force

MCQ▾

Question

Two pieces of metal when immersed in a liquid have equal upthrust on them, then

Choices

Choice (4) Response

a.

Two Pieces must have equal weights

b.

Two Pieces must have equal volumes

c.

Two pieces of metal are floating to the same depth

d.

Two Pieces must have equal densities

Question number: 109

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Two rods of same material and length have their electric resistance in ratio 1: 2. When both rods are dipped in water, the correct statement will be

Choices

Choice (4) Response

a.

Loss of weight will be in the ratio 1: 2

b.

A has more loss of weight

c.

B has more loss of weight

d.

Both b. and c. are correct

Question number: 110

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Ohm’s law is true

Choices

Choice (4) Response

a.

for gases at low temperature

b.

for electrolytes when current passes through them

c.

for metallic conductor

d.

for diode when current flows

Question number: 111

» Physics » Work and Energy

MCQ▾

Question

The resistivity of a wire

Choices

Choice (4) Response

a.

increases with the length of the wire

b.

decreases with the area of cross-section

c.

decreases with the length and increases with the cross-section of a wire

d.

None of the above

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