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Physics

Physics
Megahertz is a measurement of

Frequency
Wavelength
Speed
Capacity

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Physics
An object with a mass of 22 kg moving with a velocity of 5 m/s possesses a kinetic energy of :

110 J
110 J
2750 J
275 J

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Physics
Heat from the Sun reaches the Earth by

Radiation
Convection
Conduction
Reflection

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

Cyclotron
Mass Spectrometer
G.M. Counter
Bragg Spectrometer

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Physics
Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to:

The heating effect of current alone
Intense sunlight at noon
Hysteresis loss alone
Both the heating effect of current and hysteresis loss

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Physics
The final image in a simple microscope is

Real, diminished and inverted
Virtual, diminished and erect
Real, magnified and erect
Virtual, magnified and erect

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