The correct sequence of various regions I absorption spectrum is
1 Visible, ultraviolet, microwave, infra red
2 Infra red, gamma rays, ultraviolet, microwave
3 Ultra violet, visible, infra red, microwave
4 None of these
What is one light year?
In which year, atmospheric observations using balloons started?
Which radioactive pollutant has recently drawn the attention of the public, due to its occurrence in the building material? 1 Radium 2 Radon 3 Thorium 4 Plutonium
What is one light minute?
in earth 1degree equals how many kilo meters?
The first synthetic fiber made by man was 1 Rayon 2 Nylon 3 Polyester 4 Terycott
The final products of combustion of ethane are 1 Carbon and oxygen 2 Ethylene and Hydrogen 3 Water and Carbon monoxide 4 Carbon dioxide and water
Water is a compound because 1 It exists as a solid, a liquid or a gas 2 It contains hydrogen and oxygen 3 It contains two different elements joined by chemical bonds 4 It cannot be split up into simpler substances by chemical means
The age of most ancient geological formations is estimated by 1 Potassium-argon method 2 Ra-Si method 3 C14method 4 Uranium-lead method
What are the divisions of food according to the functions it performs ? Describe them
how is electricity converted from the potential energy of water falling from dams?
why we can't make our living room as refrigerator?