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Physics

Physics
In beta decay what is emitted

Neutron
All of these
Electron
Proton

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Physics
stars which appear single to the naked eye but are double when seen through a telescope are

asteroids
quasars
novas and supernovas
binaries

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Physics
In mirrors the back surface is coated with a thin layer of :

Red oxide
Silver
Silver nitrate
Mercury

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Physics
In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ?

Visible
Ultraviolet
X-ray
Infrared

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Physics
Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

3P
P/3
P
2p/ 3

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Physics
A current carrying conductor is associated with

An electrostatic field
An electro-magnetic field
A magnetic field
An electric field

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MORE MCQ ON Physics

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