Blog Tag Lens

Uses of Convex and Concave lens

Uses of a convex lens It is used in a number of optical instrument like camera, picture projector, telescope, microscope, etc. It is used as a reading lens and as a magnifying glass. It is used in spectacles for the correction of long sightedness of the eyes. Uses of concave lens It is used in telescope to see far off objects. It is us . . .

Difference between convex lens and concave lens

Convex lens Concave lens Convex lenses are thicker in the middle than at the edges.   Convex lens converge light rays.   It forms a virtual, erect and magnified image. Concave lenses are thinner in the middle than at the edges.   Concave . . .

Image formation in the eye

The human eye has an inbuilt convex lens. When the rays of light fall on the eye lens, it focuses a real and inverted image on the retina, which acts as a screen. The retina is connected to the optic nerves that carry the information to the brain. The brain then interprets the information and form s a real and erect image of the object with the correct . . .

Regular and irregular reflection

Regular Reflection Reflection that takes place through a regular and smooth surface is known as regular reflection. Irregular Reflection Reflection that takes place through a rough and dull surface is known as irregular or diffused reflection. . . .

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