A ray of light is incident at 40 degrees to a plane mirror. What is the angle between the incident and the reflected rays?
change the angle to be measured from the normal: 50deg.
angle between=100deg
To find the angle between the incident and reflected rays, we need to consider the law of reflection. According to the law of reflection, the angle of incidence is equal to the angle of reflection.
In this case, the ray of light is incident at 40 degrees to the plane mirror. So, the angle of incidence is 40 degrees.
Since the angle of incidence is equal to the angle of reflection, the angle between the incident and reflected rays is also 40 degrees.
To find the angle between the incident and reflected rays, you need to apply the law of reflection, which states that the angle of incidence (i) is equal to the angle of reflection (r).
Given that the incident angle (i) is 40 degrees, we can conclude that the reflected angle (r) will also be 40 degrees. This is because the angle of incidence and angle of reflection are always equal for a plane mirror.
So, the angle between the incident and reflected rays is 40 degrees.