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Physics

Physics
In beta decay what is emitted

All of these
Neutron
Electron
Proton

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Physics
The hydraulic brakes used in automobiles is a direct application of :

Pascal's law
Archimedes' principle
Bernoulli's theorem
Toricellian law

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Physics
Gamma rays can cause

Sneezing
Fever
Burning
Gene mutation

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Physics
In spherical polar coordinates (l, q, a), q denotes the polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by

Pcosq sina
Pcosq cosa
Psinq sina
Psinq cosa

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Physics
A parallel-plate capacitor,with air in between the plates, has capacitance C. Now the space between the two plates of the capacitor is filled with a dielectric of dielectric constant 7. Then the value of the capacitance will become

14C
C
C/7
7C

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Physics
Which metal is the best conductor of heat?

All of these
Copper
Gold
Silver

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MORE MCQ ON Physics

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