By passing it through a prism
By filtration
Can’t be separated
Both (a) and (b)
Who among the following coined the term тАХcosmic raysтАЦ ?
Who among the following discovered the atom bomb -
Who among the following invented the refrigerator?
Who defined the law of gravitation ?
Who gave the first evidence of Big bang theory?
Who initially gave the idea of laser (without using the acronym)?
Who invented air conditioning?
Who invented Dynamite?
Who invented Electric Generator?
Who invented the phonograph?