Physics
Mercury is commonly used as a thermometric fluid rather than water because

density of mercury is more than the water
specific heat of mercury is more than water
specific heat of mercury is less than water
mercury has greater visibility than water

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Physics
The mass defect is the result of what action occurring?

Mass being converted to energy when protons and neutrons break apart in a nucleus
Mass being converted to energy when protons and neutrons bind together in a nucleus
Protons and electrons being attracted to each other
Energy being converted into moles of atoms when neutrons break apart protons

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Physics
X-rays region lies between

Ultraviolet and visible region
Short radio waves and long radio waves
Gamma-rays and ultraviolet region
Visible and infra-red region

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