NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension: Questions 174 - 177 of 816

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Question number: 174

» Physics » Motion and Force

Appeared in Year: 2013

MCQ▾

Question

The figure below shows the position of a ball at t = 0, t = 1 s, t = 2 s, t = 3 s and t = 4 s

A position vs time graph of a ball

A Position vs Time Graph of a Ball

A ball change its position at five different times

Which of the graph below is a possible graph of the position x (t)?

Choices

Choice (4) Response

a.

A position vs time graph of a ball - Choice A

A Position vs Time Graph of a Ball - Choice A

A ball change its position at five different times

b.

A position vs time graph of a ball - Choice B

A Position vs Time Graph of a Ball - Choice B

A ball change its position at five different times

c.

A position vs time graph of a ball - Choice C

A Position vs Time Graph of a Ball - Choice C

A ball change its position at five different times

d.

A position vs time graph of a ball - Choice D

A Position vs Time Graph of a Ball - Choice D

A ball change its position at five different times

Question number: 175

» Chemistry » Carbon and Its Compounds

Appeared in Year: 2013

MCQ▾

Question

Which of the following pairs of compounds of carbon will undergo combustion as well as addition reactions?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Passage

There is no atmosphere on the Moon, which means there can be no seas, rivers or water of any kind. We are accustomed to think of water as a liquid which does not boil away until it reaches a temperature of 212°, but if ever we picnic high up on a mountain, we find out our mistake. We soon discover that water boils more easily and at a lower temperature there than on the plains below. The reason is that there is less weight of air to keep the molecules of the liquid pressed down and so prevent them from flying off by evaporation. If there were no air pressure at all, the water would evaporate no matter how low its temperature and this is precisely what would happen on the Moon.

Question number: 176 (1 of 5 Based on Passage) Show Passage

» English Language » Reading Comprehension

MCQ▾

Question

Water boils at less than 212° when-

Choices

Choice (4) Response

a.

there is less weight of air in the atmosphere

b.

we apply more heat

c.

the molecules of the liquid are not pressed down

d.

there is more evaporation

Question number: 177 (2 of 5 Based on Passage) Show Passage

» English Language » Reading Comprehension

MCQ▾

Question

Water will not evaporate, if-

Choices

Choice (4) Response

a.

the kitchen is air conditioned

b.

it is boiled at a low flame

c.

there is adequate air pressure

d.

the temperature is very low

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