Question

the radical of the surd √3 3√4. 5√3

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Answer 1

Answer:

I hope it is usefulWe know that angle of incidence and angle of reflection both are measured from normal which is perpendicular to the plane.

Let,

Angle of incidence =i

Angle of reflection =r

Normal ON is perpendicular to plane.

So, angle of incidence, i=90

0

−30

0

=60

0

We know that angle of incidence=angle of reflection

So, angle of incidence=angle of reflection =60

0

Hence, angle between incident ray(AO) and reflected ray(OB) is =i+r=60

0

+60

0

=120

0