Physics - General Knowledge Questions and Answers

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One bar is equal to

10³ Pa

10⁶ Pa

10⁵ Pa

10⁴ Pa

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Pressure Cooker cooks faster because

Boiling point decreases with rise of pressure

It cooks the food at low pressure

Higher temperature is attained for cooking

The material of the cooker is a good conductor

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In a particular system, the units of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalent to

0.1 N

1 N

10 N

100 N

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The weakest of all fundamental forces is

Gravitational force

Electrostatic force

Magnetic force

Nuclear force

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The unit of force is a

Derived Unit

Basic Unit

Fundamental Unit

None of the above

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Atmospheric pressure exerted on earth is due to

Gravitational pull

Rotation of earth

Revolution of earth

Uneven heating of earth

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What is the SI unit of Force?

Pascal

Boyle

Newton

Watt

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What measures Air pressure?

Barkometer

Bolometer

Spectrometer

Barometer

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The rice is cooked more quickly in a pressure cooker because

It is covered.

Less quantity of water is used.

None of these

Water boils at a higher temperature under pressure.