Physics
Water drops cannot stick to the oily surface due to

Surface tension
Lack of adhesive force
Cannot mix each other
Water is lighter than oil

ANSWER DOWNLOAD EXAMIANS APP

Physics
What is a compound microscope?

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

ANSWER DOWNLOAD EXAMIANS APP