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reflection? 3. What do you call that law that compares angle I and angle r?

reflection? 3. What do you call that law that compares angle I and angle r?

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Can someone help me answer this questions ASAP. #3 only.

* ACTIVITY 1. Investigating Wave Properties & Interactions 2 If you try to hit the wall with a rubber ball in a straightforward manner, you could observe that it will hit you back following the same path. However, if you hit the wall at an angle from the normal at the right, it will be reflected at the left with an angle which is the same in magnitude to the one at the right. This situation of the ball can also occur in terms of waves. The turning back of wave as it hits a barrier is known as reflection. The waves that strike the barrier are called incident waves and those waves which turn back after hitting the barrier are called reflected waves. The figure below shows an incident ray represented by I0 hitting a barrier at 0. ON is the normal line perpendicular to the reflecting surface. The angle between the normal line and the incident ray is called the angle of incidence and the angle between the normal line and the reflected ray is called the angle of reflection. R Looking at the figure above, answer the following questions: 1. How do you differentiate incident ray and reflected ray? 2. By inspection, how do you compare the angle of incidence to the angle of reflection? 3. What do you call that law that compares angle I and angle r?
Transcribed Image Text:* ACTIVITY 1. Investigating Wave Properties & Interactions 2 If you try to hit the wall with a rubber ball in a straightforward manner, you could observe that it will hit you back following the same path. However, if you hit the wall at an angle from the normal at the right, it will be reflected at the left with an angle which is the same in magnitude to the one at the right. This situation of the ball can also occur in terms of waves. The turning back of wave as it hits a barrier is known as reflection. The waves that strike the barrier are called incident waves and those waves which turn back after hitting the barrier are called reflected waves. The figure below shows an incident ray represented by I0 hitting a barrier at 0. ON is the normal line perpendicular to the reflecting surface. The angle between the normal line and the incident ray is called the angle of incidence and the angle between the normal line and the reflected ray is called the angle of reflection. R Looking at the figure above, answer the following questions: 1. How do you differentiate incident ray and reflected ray? 2. By inspection, how do you compare the angle of incidence to the angle of reflection? 3. What do you call that law that compares angle I and angle r?
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