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Physics

Physics
The unit of intensity of electric field is

N/m
Volt
J/c
N/c

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Physics
Electrical Energy is the energy of

Neutrons
All listed here
Protons
Electrons

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Physics
Why the needle of iron swims on water surface when it is kept gently ?

It will remain under the water, when it will displace more water than its weight
Due to its shape
Due to surface tension
The density of needle is less than that of water

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Physics
When hot liquid is poured into a thick glass tumbler, it cracks because glass :

Has low temperature coefficient of expansion
Is a bad conductor of heat so only inner surface expands
Has a very low specific heat
Has high temperature coefficient of expansion

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Physics
Transformer is a device to convert

Mechanical energy into Electrical energy
Low voltage D.C. into high voltage D.C.
C. to A.C.
Low voltage A.C. into high voltage A.C.

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Physics
The final image in a simple microscope is

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

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MORE MCQ ON Physics

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