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Physics

Physics
The SI unit of luminous emittance is :

Lux
Lumen second
Lumen
Candela

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Physics
The device used to convert solar energy into electricity is

Daniell cell
Galvanic cell
Electrochemical cell
Photovoltaic cell

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Physics
Which measurement describes the pressure of a gas?

315 K
None of these
251 g/cub.cm
450 mm Hg

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Physics
Why does ice covered in sawdust not melt quickly ?

Sawdust is a bad conductor of heat
The water is absorbed by sawdust
Sawdust does not allow the air to touch the ice
Sawdust is good conductor of heat

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Physics
Electricity is transmitted over long distances

It is safer
It is fast
There is less wastage of energy
It is cheaper

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Physics
Which alternative energy source is exhaustible?

Wind energy
Solar energy
Geothermal energy
Tidal energy

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MORE MCQ ON Physics

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