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Physics

Physics
Eddy current is generated by

Induction
Convection
Direct Current
Conduction

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Physics
The propagation of sound waves in a gas involves

Isobaric compression and rarefaction
Isochoric compression and rarefaction
Isothermal compression and rarefaction
Adiabatic compression and rarefaction

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Physics
Bubbles of air rise up through liquids due to

Up thrust and surface tension
Viscosity and buoyancy
Air current over the liquid and buoyancy
Surface tension and adherence

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Physics
When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together?

Vander waals forces
Hydrogen bond formation
Dipole interaction
Covalent attraction

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Physics
The device which converts AC to DC is

Oscillator
Rectifier
None of these
Amplifier

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Physics
When a bar magnet is cut into two equal halves, the pole strength of each piece –

Remains the same
Becomes double
Becomes zero
Becomes half

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MORE MCQ ON Physics

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