Question

complete the table by stating measurements of angle of Incidence or angle of reflection
angle of Incidence. angle of reflection
15 degree. _______
________. 50 degree
_______. 25 degree
80 degree. ________
90 degree. ________​

Answer 1

Answer:

(1)  15 degree

(2)  50 degree

(3)  25 degree

(4)  80 degree

(5)  90 degree

Explanation:

angle of Incidence is equal to  angle of reflection

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Answer 2

The complete table, stating measurements of the angle of Incidence or angle of reflection, is as follows.

Angle of Incidence     Angle of reflection

15 degree.                    15 degree

50 degree.                   50 degree

25 degree.                   25 degree

80 degree.                   80 degree

90 degree.                   ​90 degree

• From the first law of reflection, we know that when a light ray reflects from a surface, the angle of reflection, that is, the angle made by the reflected ray is always the same as or equal to the angle of incidence.
• Thus, all of the angles in the table will be same as their given incident or reflection angle.
• For the case when the incident angle is 90°, the light ray will be parallel to the surface, and the reflected ray will also trace the same path as that of the incident ray.