Question

Высокий уровень 32. После увеличения угла падения на 20° угол отражения уве личился в 5 раз. Чему был равен начальный угол падения Сделайте пояснительный рисунок.​

Answer 1

Угол падения равен углу отражения. значит если между ними угол равен 20, угол падения=углу отражения=20/2=10. если угол падения увеличить на 5 т. е. (10+5)=15. значит угол отражения тоже будет равен 15.

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Answer 2

Calculation of the Initial Angle of Incidence

To find the initial angle of incidence, we can use the information given in the question. We are told that after increasing the angle of incidence by 20°, the angle of reflection increased by a factor of 5. Let's denote the initial angle of incidence as x.

According to the law of reflection, the angle of incidence is equal to the angle of reflection. So, if the angle of incidence is increased by 20°, the angle of reflection will also increase by 20°.

Given that the angle of reflection increased by a factor of 5, we can set up the following equation:

x + 20 = 5(x)

Simplifying the equation:

x + 20 = 5x

4x = 20

x = 5

Therefore, the initial angle of incidence is 5°.

Illustration

Here is an illustration to help visualize the situation:

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