Question

Q.2 Read the fo owing passage ca efully and answer he question given below it.
Passage - 2
Helen keller lost her eye-sight and earing at the age o Two because of ar illness she become
deaf. She also lo the ability to spea for we learn to si eak by imitating wl at we hear. At first t
seemed impossil e that she would n ver understand oth 's or be understood by them. Here was ius
a lonely world. I ut she was helped t a wonderful teach r named miss Sulli an who had hersel
been blind as a cild but recovered t r eye - sight by an "peration. Miss Sul van
volunteered to h p Helen and taugh her to speak , read nd write. Helen lat r went to a univers y
and gained a deg ee. She then spent le rest of her work ig to help the blind ind the deaf.
Question -
1.Hos do learn to speak

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Answer 1

$\huge\underline\mathrm\purple{Answer}$

Name the various types of commonly used mirror.

↦The various types of commonly used mirrors are

Plane mirror - A plane mirror is a mirror with a flat reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence.

Spherical mirror -A curved mirror is a mirror with a curved reflecting surface. The surface may be either convex or concave

Concave mirror - A curved mirror is a mirror with a curved reflecting surface.

Convex mirror - A convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. Convex mirrors reflect light outwards.