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Physics

Physics
Which liquid is the most viscous?

Oil
Diesel
Water
Milk

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Physics
Which of the following device is used to measure humidity?

Psycho Meter
Anemometer
Hydrometer
Hygrometer

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Physics
Which phenomenon is responsible for the echo of sound wave?

Interference
Refraction
Polarisation
Reflection

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Physics
Fish and other aquatic creatures can live inside a deep frozen pond because

There will always be water just beneath the ice level
They can adapt themselves to live in ice
Fish are cold-blooded animals
Ice is a bad conductor of heat

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Physics
The ''four stroke petrol engine' is based on

Carnot-cycle
Boyle's-cycle
Otto-cycle
Diesel-cycle

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Physics
The magnifying power of an astronomical telescope can be decreased by

Increasing the focal length of the eyepiece
Decreasing the focal length of the eyepiece
None of these
Increasing the focal length of the objective

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