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Physics

Physics
Energy per unit volume is dimensionally equal to

Density
Work
Force
Pressure

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Physics
The unit of Planck's constant is

J/s
Js–2
Js
Js2

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Physics
Mud houses are cooler in summers and warmer in winters as compared to brick houses because

Mud is a good conductor
Mud is a poor insulator
Mud is a bad conductor
Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters

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Physics
The cover of a solar cooker is made of glass because

It reflects sun's rays
It absorbs sun's rays
It retains the heat inside by the green house effect
It rediates heat better than metals

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Physics
The p wave of a normal Electrocardiogram indicates

Atrial repolarization
Ventricular depolarization
Atrial depolarization
Ventricular repolarization

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Physics
If both the mass and the velocity of a body is increased to twice of their magnitude, the kinetic energy will increase by

8 times
4 times
2 times
16 times

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MORE MCQ ON Physics

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