Physics
Alcohol is more volatile than water because ________ is lower than water.

Its density
Its viscosity
Its surface tension
Its boiling point

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

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

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