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.

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Physics
Which one of the following is not a property of electromagnetic waves?

Electromagnetic waves do not require a medium to propagate.
Electromagnetic waves are transverse waves
Oscillating electric field and magnetic field are perpendicular to each other.
Electromagnetic waves do not show interference and diffraction.

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