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Physics

Physics
What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?

36
50
12
24

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Physics
Which of the following has the highest entropy?

Hydrogen
Mercury
Diamond
Liquid nitrogen

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Physics
The cause for the Tsunami, as deduced by the seismologists, is

Sudden change in the monsoon wind
Gravitational pull of the moon
Low pressure trough in the ocean
Deformation of sea floor and vertical displacement of water

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Physics
A spherical ball made of steel when dropped in mercury container

Sink in mercury
Will be partly immersed mercury
Will be on the surface of mercury
Will dissolve in mercury

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Physics
Lightning heats the surrounding air to

300 deg Cent
30000 deg Cent
3000 deg Cent
300000 deg Cent

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Physics
The redness in atmosphere at Sunrise and Sunset is due to :

Refraction of light
Reflection of light
Dispersion of light
Scattering of light

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