Looking for a 16 yr old guy cutiee dtd
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Ответ:
omg dont take my boyfriend haha
Ответ:
sorry i'm a girl
Thx for the coins though
Explanation:
Ответ:
Explanation:
Angle of rotation of the flat polished surface
= 15°
angle of incidence i = 20°
Since the polished surface is turned at an angle of 15°, the angle of reflection
r = 2
(Note that the angle of rotation only have effect of the angle of reflection)
r = 2*15 = 30°
The angle between the reflected ray and the incident ray will be equal to the sum of the angle of incidence and the angle of reflection i.e i+r
The angle between the reflected ray and the incident ray = 20°+ 30° = 50°