KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics: Questions 140 - 143 of 253

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Question number: 140

» Kinetic Theory of Gases » Law of Equipartition of Energy

Appeared in Year: 2015

MCQ▾

Question

Methane is greenhouse gas because

Choices

Choice (4) Response

a.

it absorbs longer wavelengths of the electromagnetic spectrum while transmitting shorter wavelengths.

b.

it transmits all wavelengths of the electromagnetic spectrum

c.

it absorbs all wavelengths of the electromagnetic spectrum

d.

it absorbs shorter wavelengths of the electromagnetic spectrum while transmitting longer wavelengths

Question number: 141

» Properties of Solids & Liquids » Viscosity

MCQ▾

Question

A small metal ball of diameter 4 mm and density 11.6 g cm-3 is dropped in glycerin of density 1.5 g cm-3. The ball attains a terminal velocity of 980 cm s-1. The coefficient of viscosity of glycerin is,

Choices

Choice (4) Response

a.

4.9 poise

b.

980 poise

c.

16.49 poise

d.

9.8 poise

Question number: 142

» Gravitation » Gravitational Acceleration

Appeared in Year: 2015

MCQ▾

Question

The international space station is maintained in a nearly circular orbit with a mean altitude of 330 km and a maximum of 410 km. An astronaut is floating in the space station’s cabin. The acceleration of astronaut as measured from the earth is

Choices

Choice (4) Response

a.

Nearly zero and directed towards the earth

b.

Nearly g and directed along the line of travel of the station

c.

Nearly g and directed towards the earth

d.

Zero

Question number: 143

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

What is actual meaning of coefficient of superficial expansion?

Choices

Choice (4) Response

a.

Coefficient of total expansion due to change in pressure

b.

The total expansion of area due to change in temperature

c.

The fractional change in area per unit rise of temperature

d.

All of the above

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