Question

10.A ray of light is reflected by two parallel mirrors (1) and (2) at points A and B. The ray makes an
angle of 25° with the axis of the two mirrors.
25 0
www.problemsphysics.com
a)What is the angle of reflection at the point of incidence A?
b) What is the angle of reflection at the point of incidence B?
​

Answer 1

Answer:

according to the figure attached CA is the axis

angle of reflection at the point of incidence of A is 25° and the angle of reflection at the point of incidence B is 25°.

I hope this helps.

Answer 2

Answer:

1)  i = 90-25=75 degrees

2) i'=r=i=75 degrees

Explanation:

let us assume the diagram

N1 and N2 are the normal to the reflecting mirror and there are perpendiculars of the axis of two mirrors

1) the angle of reflection at the point of incidence A

    that equal to =i = 90-25=75 degrees

2) the angle of reflection at the point if incidence B

    therfore

     the two mirrors are parallel and AB intersects intersects both of them and angle "r" and "i" are alternate interior angles and equal in size also

so r=i ( law of reflection )

i'=r=i=75 degrees

#SPJ3