Question

give reasons for the following:
a . A concave lens is also known as diverging lens .
b . An object seen through a prism appears coloured
c . A coin kept at the base of a jar filled with water appears raised .
d . it is not possible to see an object clearly if it is kept too close to eye
e . A convex lens may also be used as magnifying glass.....





please answer all of them

Answer 1

a. It is know as a diverging Lena because the light Ray's will diverge passing through it.

b. This phenemon is known as dispersion of light and this occours due to multiple internal reflection and refraction.

c.It appears raised due to the refraction of light Ray's from one medium to other medium

d.It is because the near point of a human eye is 25cm and object closer to there will not be clearly visible...

e. because it magnifies the image and anso it is a converging lens

Answer 2

this photo is for e

a.outward bending of rays after suffering refraction through a concave mirror . thus the parallel rays of light suffering refraction through a concave lens appear to diverge from a point F the focal point

the outward bending of the ray of light by a concave lens is called diverging lens

b.the appearance of seven colours on a screen is known as dispersion of light
the white light is made up of seven colours

sorry don't know c d

hope it helps pls mark as brainlist