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Physics

Physics
A micron is equal to

0.0001 mm
0.01 mm
0.001 mm
0.1 mm

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Physics
Consider the following statements :1. There is no net moment on a body which is in equilibrium.2. The momentum of a body is always conserved.3. The kinetic energy of an object is always conserved.Which of the statements given above is/are correct?

1 only
1 and 2 only
2 and 3 only
1, 2 and 3

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Physics
Eclipses occur due to which optical phenomena?

Reflection
Diffraction
Refraction
Rectilinear propagation

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Physics
Which of the following are methods of heat transfer?

Revolution
Evaporation
Thermal Expansion
Convection

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Physics
Which one is the unit of surface tension of a liquid

None of these
Joule/ mm
Electron volt /cm2
Newton /m2

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Physics
Stars appear twinkling because of ......... of light.

Scattering
Emission
Reflection
Absorption

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