Question

5/3+(-2/7)+(-3/5)+1/2​

Answer 1

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If the angle between an incident ray and a mirror is 40°, then what is the total angle through which the ray of light turns?

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13 Answers

Shiva Kumar, former Karnataka Hindi High School (1974-1996)

Answered March 14, 2018 · Author has 619 answers and 595.6K answer views

If the angle between an incident ray and a mirror is 40°, then what is the total angle through which the ray of light turns?

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Answer 2

Answer:

$\frac{5}{3} + ( \frac{ - 2}{7} ) + ( \frac{ - 3}{5} ) + \frac{1}{2} \\ \\ = \frac{5}{3} - \frac{2}{7} - \frac{3}{5} + \frac{1}{2} \\ \\ = \frac{350 - 60 - 126 + 105}{210} \\ \\ = \frac{290 - 126 + 105}{210} \\ \\ = \frac{164 + 105}{210} \\ \\ = \frac{269}{210} \\ \\ = 1.2809$

hope this much helps uh ❣️