Physics
If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used?

Plane
Convex
Cylindrical
Concave

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Physics
An electron microscope gives higher magnification than an optical microscope, because :

The velocity of electron is smaller than that of visible light
The electrons have more energy than the light particles
The wavelength of electrons is smaller as compared to the wavelength of visible light
It uses more powerful lenses

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