Question

Q.1 Difference into concave and convex lens?
Q.2 What is dispersal of light?
Q.3 Define Reflection?
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Answer 1

Answer:

first

convex lens is thicker at the centre and thinner at the edges. A concave lens is thicker at the edges and thinner at the centre. Due to the converging rays, it is called a converging lens. Due to the diverging rays, it is called a diverging lens.

second:::::::

optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency. Media having this common property may be termed dispersive media. Sometimes the term chromatic dispersion is used for specificity.

thirf::::0

image that you see in a mirror, in water or on a shiny surface

Explanation:

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