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Physics

Physics
If a copper wire is increased to double its length, its resistance will become

Half
One–fourth
Double
Four times

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Physics
The direction of heat flow between two objects depends on

Whether they are in solid, liquid or gaseous state
Their temperatures
Their heat contents
Their masses

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Physics
Suitable impurities are added to a semiconductor depending on its use. This is done in order to

increase its life
enable it to withstand higher voltages
increase its electrical conductivity
increase its electrical resistivity

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Physics
Which colour of light shows maximum deviation when passed through a prism ?

White
Red
Violet
Green

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Physics
The device used to convert solar energy into electricity is

Galvanic cell
Photovoltaic cell
Electrochemical cell
Daniell cell

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Physics
Rocket works on the principle of

Newton's Third Law
Archimedes Principle
Newton's First Law
Newton's Second Law

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MORE MCQ ON Physics

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