Q1 of 52 Page 430

Can virtual image be formed on the retina in a seeing process?

No virtual image cannot be formed on the retina of our eyes, since our cornea is of convex lens in


Nature and a convex lens always forms real and inverted images on retina, hence virtual image is


never formed on retina in a seeing process.



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2

Can the image formed by a simple microscope be projected on a screen without using any addtional lens or mirror?

 3

The angular magnification of a system is less than one. Does it mean that the image formed is inverted?

 4

A simple microscope using a single lens often shows coloured image of a white source. Why?

 5

A magnifying glass is a converging lens placed close to the eye. A farsighted person uses

spectacles having converging lenses. Compare the functions of a converging lens used as a


magnifying glass and as spectacles.