Science

What is the use of a Hypsometer?
For measuring altitudes

In what from does the sound waves travel in air?
Longitudinal waves

Hydrogen bomb is based on which phenomenon?
Nuclear fusion

Which is the colour that absorb all light waves?
Black

Which metals used in solar battery?
Germanium, Silicon and Celinium

Who proved first that there is a medium of ether everywhere in the universe?
Aristotle

Which part of our body does radiation harms the most?
Marrow in the bone

Which is the colour in the center of a rain bow?
Green

Which is the liquid used in Volta cell?
Diluted Sulphuric acid

Name the scientist who invented that the gases in the atmosphere absorb heat coming from the sun?
Joseph Fourier