Physics
Which one of the following is not a feature of Indifference Curve?

They are concave to each other
They are parallel to each other
They slope downwards to the right
They do not intersect each other

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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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