secret
when a ray of light falls normally ie. perpendicular to the refracting or reflecting ,the the angle of incidence is zero(angle of incidence is the angle between the incident ray and the normal at the point of incidence) A ray with 0 angle of incidence doesnot suffer any change on refraction and goes straight into the second medium.
If the ray is incident at right angles to the reflection surface, angle of Incidence will be 90 degrees and so will be the angle of reflection. In such a case, the incident ray, the normal and the reflected ray coincide.
Because that's where the solar rays hit the earth at a 90 degree angle. And the earths rotation on a tilt causes the Solstice and Equinox.
the law of reflection, which states that the angle of incidence is equal to the angle of reflection.
It does. But when the ray arrives perpendicular to the boundary, the angle of incidence and the angle of refraction are both zero, so its direction doesn't change.
no
Only in the angle of incidence.
No, the equator is an imaginary line that divides the Earth into northern and southern hemispheres. The sun is directly overhead the equator only during the equinoxes, when day and night are of equal length.
The angle of incidence
when a ray of light falls normally ie. perpendicular to the refracting or reflecting ,the the angle of incidence is zero(angle of incidence is the angle between the incident ray and the normal at the point of incidence) A ray with 0 angle of incidence doesnot suffer any change on refraction and goes straight into the second medium.
Angle of incidence can be anything. Angle of reflection is the same as angle of incidence.
The angle of incidence does not change. I think you want to know the relationship between the angle of incidence and the angle of transmission. In the case of from air to glas, the transmission angle is smaller than the angle of incidence due to a higher index of refraction of glass than that of air. Look up Snell's Law for better understanding.
The angle of incidence is ALWAYS equal to the angle of reflection! This is one of the laws of reflection.
The second angle of incidence is equal to the angle of refractions.
0(zero) Angle of incidence = angle of reflection
when the angle of refraction is zero you still need an angle of incidence because it still reflects back.
the answer is simple its the angle of incidence always equals the angle of reflection