Question

if the angel of reflection is 40 then what will be the angel of incidence

Answer 1

Answer:

angle of reflection = angle of incidence

so, angle of reflection will remain 40 degree

Answer 2

Required Answer:

Given:

• Angle of incidence = 40°

To find:

• Angle of reflection = ?

Solution:

For this let us review the laws of reflection:

• The incident ray, the reflected ray and the normal at the point of incidence , lie on the same plane.

• The angle of incidence is always equal to the angle of reflection.

So, here as the 2nd law implies that ∠ i = ∠ r. Thus, same as that here the ∠ of reflection will be 40°. [ Since ∠ i = 40° ]

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Extra!

• Reflection

→ The bouncing back of the light rays from the surface of an object is called reflection.

• Types of reflection

→ Regular reflection : When a parallel beam of light falls on the surface and reflected as a parallel beam in one direction is called regular reflection.

→ Diffused reflection : When a parallel beam of light falls on the surface and reflected as a parallel beam in random(different) direction is called regular reflection.

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