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Physics

Physics
The instrument used to measure the speed of the wind is

Chronometer
Anemometer
Dosimeter
Altimeter

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Physics
Vegetables are cooked in lesser time by adding a pinch of salt while cooking because

Latent heat of vaporization of water increases
Boiling point of water decreases
Latent heat of vaporization of water decreases
Boiling point of water increases

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Physics
The GPS device in an automobile uses which communication channel?

Infrared
Satellite
Microwave
Radio frequency

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Physics
An object that has kinetic energy must be

Moving
At an elevated position
At rest
Falling

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Physics
The waves used in sonography are

Infra-red waves
Sound waves
Ultrasonic waves
Micro waves

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Physics
Water cannot be used to extinguish fire caused by electric current, because

It may cause electrocution
It may cause hydrolysis
It may spoil the wiring
It may cause electrolysis

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MORE MCQ ON Physics

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