Question # 1

Length of a rod is L∘ on temperature T∘. After heating upto temperature T, its length L becomes

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L = L∘ (1 + αΔT)

L = L∘ (1 + ΔT)

L = L∘ (1 - αΔT)

L = L∘ (1 -ΔT)

Which one of the following units is not a derived unit?

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Pascal

Kilogram

Newton

Watt

Near the earth surface the gravitational field strength is:

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1 N kg^-1

10 N kg^-1

100 N kg^-1

101 N kg^-1

See breeze blows form sear to land during:

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day

night

after noon

morning

Matter has basically ___________ states.

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4

3

Both a & b

None

GPS consists of __________ earth satellites.

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30

2

7

24

The study of motion without reference to mass and force.

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Mechanics

Dynamics

Kinematics

None of these

Land breeze from land to sea during:

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Day

Night

Afternoon

Morning

The orbital speed of a low orbit satellite is:

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Zeri

8 ms^-1

800 ms^-1

8000 ms^-1

Friction is caused by :

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Shining surface

Rough surface

Polished surface

Nil

When horse pulls a cart, the action is on the?

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Cart

Earth

Horse

Earth and Cart

When horse pulls a cart, the action is on the:

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Cart

Earth

Horse

Earth and cart

If a body is at a depth of 'h'form the liquid surface of density 'p' , then

the liquid pressure p[' in that body is:

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P = mgh

P = pgh

P = 2mgh

P = mag

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