Question # 1

Glider pilots use __________ movement of hot air currents due to convection of heat:

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Downward

Upward

Left

right

The orbital speed of a low orbit satellite is

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Zero

8 ms-1

800 ms-1

8000 ms-1

A body has translatory motion if it moves along a.

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Straight line

Curved path

Line without rotation

Circle

Energy cannot be destroyed however it can be converted into some other forms. This is known as:

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Law of heat exchange

Law of conservation of energy

Law of conservation of momentum

None of these

A Student claimed the diameter of a wire as 1.032 cm using vernier callipers. Upto what extent do your agree with it

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1 cm

1.0 cm

1.03 cm

1.032 cm

The formula of torque is:

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L= F x E

E = F x t

t = F x L

E = F x L

The unit of electric charge is

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Ampare

Joule

Coulomb

Volt

Rooms are heated using gas heaters by

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Conduction only

Convection and radiation

Radiation only

Convection only

The centre of gravity of hollow cylinder is the middle point on its:

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Curved side

axis

Bottom

On upper side

Running water possess energy:

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Kinetic

Potential

Elastic Potential energy

Gravitational potential energy

Hydro meter is used to measure:

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Pressure

Density

Area

Volume

The boiling point of mercury is:

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-10 ^oC

150^oC

375^oC

457^oC

Meniscus of which liquid curves upward.

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Water

Honey

Mercury

Milk

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