Physics
Which of the following occurred first ?

Wright Brothers successfully flew an aircraft
Max Planck unveiled the Quantum Theory
Albert Einstein propounded the General Theory of Relativity
Guglielmo Marconi sent out the first wireless signals

ANSWER DOWNLOAD EXAMIANS APP

Physics
What is a compound microscope?

A microscope whose lenses are concave.
A microscope whose lenses are convex.
A microscope that has two sets of lenses : an occular lens and an eyepiece.
A microscope that has one lens.

ANSWER DOWNLOAD EXAMIANS APP