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Physics

Physics
The unit of energy in MKS system is

Erg
Ohm
Volt
Joule

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Physics
Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?

Planck's constant and Angular momentum
Force and rate of change of linear momentum
Impulse and moment of force
Pressure and Young's modules

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Physics
Full form of CFL used in place of electric bulbs is

Compact fluorescent lamp
Closed filament lamp
Constantan filament lamp
Closed fluorescent lamp

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Physics
Which law relates to the ideal gas law?

T1/V1 = T2/V2
P1/V1 = P2/V2
P1V1 = P2V2
P1T1 = P2T2

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Physics
A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/s2)

200 J
400 J
0 J
100 J

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Physics
Ultrasound devices operate with minimum frequency from

60 kHz
20kHz
45 kHz
35 kHz

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