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Physics

Physics
Instrument used to study the behaviour of a vibrating string is :

Hydrometer
Barometer
Hygrometer
Sonometer

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Physics
A mirage occurs because of

Reflection by hot ground
Total internal reflection by layers of air
Diffraction of light
Interference of light

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Physics
Copper wires are generally used for electrical power transmission instead of iron wire because :

Copper is cheaper than iron
Copper can take higher power than iron
Copper is a better conductor of electricity than iron
Copper is lighter than iron

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Physics
What is the reason for formation of Mirage in desert?

Reflection of light
Total internal reflection of light
Refraction of light
Both Refraction and Total internal reflection of light

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Physics
The locomotion of insects to the source of light is called :

Phototactic
Phototropic
Thermotactic
Hydrotropic

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Physics
Damp clothes are dried in spin dryers by the action of

Centripetal forces
Centrifugal forces
Non central forces
Central forces

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MORE MCQ ON Physics

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