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Physics

Physics
A boat will submerge when it displaces water equal to its own:

Weight
Surface area
Volume
Density

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Physics
The device used for measuring the wavelength of X-rays is

G.M. Counter
Cyclotron
Mass Spectrometer
Bragg Spectrometer

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Physics
In the Earth, the weight of a body is maximum at the

Equator
North Pole
South Pole
Surface

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Physics
ML2T-2 is the dimensional formula for

pressure
elasticity
couple acting on a body
moment of inertia

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

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

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Physics
In a refrigerator what produces the cooling ?

None of these
The ice which deposits on the freezer
The sudden expansion of a compressed gas
The evaporation of a volatile liquid

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