Question

A ray is incident at Angle 67 to the normal find the angle of glance

Answer 1

Given :-

• Angle of Incident is 67°

To find :-

Angle of glancing

SOLUTION:-

We have formula to find the Angle of glancing that is

Angle of incidence + Angle of glancing is 90°

i + α = 90°

where,

• i is angle of incidence
• α is angle of glancing

67° +α = 90°

α = 90°-67°

α = 23°

So, the angle of glancing is 23°

Know more :-

• Angle of incidence = Angle of reflection
• Incident ray , Normal ray , Reflection ray lie on same plane
• Angle of deviation is 180- 2i or 180-2r

So , According to the problem ,

Angle of deviation = 180-2i

= 180-2(67)

= 180- 134

= 46°

• Angle of incidence is 67°
• Angle of reflection is 67°
• Angle of glancing is 23°
• Angle of deviation is 46°