Question # 1

Bio mass is converted into fuel by

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Evaporation

Fermentation

Reflection

Scattering

The power needed to lift a mass of 5000 g to height of 1 m in 2 secnd is

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2.45 watt

24.5 watt

245 watt

2.45 watt

The frictional force is

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Conservative force

Non conservative force

Electric force

Magnetic force

The dimensions of work are.

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[MLT-1]

[MLT-2]

[ML2T-2]

[MLT]

A body of mass 1.0 Kg dropped from the top of a tower of highest 50 m, what will be its K.E. 10 m below the top

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400 J

490 J

49 J

98 J

When distance is plotted against the force, it is taken along

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x-axis

y-axis

z-axis

None of these

SI unit of work

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Newton

Walt

Pascal

Joule

If velocity 'v' of an object is double, then K.E. because.

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Remain same

Sixteen times

Double

Four times

Watt -m2 is the unit of

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Energy

Intensity

Power

Work

Energy dissipated usually appears as

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P.E.

Heat Energy

Chemical energy

Nuclear Energy

The value of solar constant.

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1.4 kW m-2

1.0 kW m-2

1.6 kW m-2

2 kw m-2

The SI unit of power is

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Joule

Newton

Watt

Kilowatt

By increasing the amount of stretch in spring the force exerted will

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Increase

One watt

One erg

One joule

Salter's duck was invented by

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Newton

Einstein

Prof Salter

Maxwell

Biomas is a potential source of

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Renewable energy

Non renewable energy

Botha a and b

Tidal energy

When the rocket moves away from the earth, the work against gravity

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Remains constant

Varies directly with distance

Varies inversely with distance

Varies inversely with square of distance

The dimensions of work are

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MLT^-1

MLT^-2

ML²T^-2

ML^-1T^-1

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