Physics
The recoiling of gun is an example of which of the following?

Law of Conservation of Angular Momentum
Conversion of Kinetic Energy to Potential Energy
Law of Conservation of Energy
Law of Conservation of Linear Momentum

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

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
It uses more powerful lenses

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