Question

If the angle between the incident ray and reflected ray is 90°, what are the values of the angle

of incidence and angle of reflection? What form one cycle of the wave?​

Answer 1

$\huge \fbox \pink{Answer:}$

➧Given: Angle Between the incident ray and reflected ray is 90°

$⇒i.e,∠i + ∠r = 90°$

➧To Find: Angle of incidence (∠i) and angle of Reflection (∠r)

$\textbf{Formula: \: ∠i = ∠r}$

$\textbf{Calculation:} \: \text{given \: that,} \: ∠i + ∠r = 90°$

$⇒ \textbf{From Formula} = ∠i + ∠i = 90°$

$∴2∠i = 90°$

$∴∠i = \frac{90°}{2} = 45°$

$\textbf{:From Formula} =∠r = 45°$

$\\ \\ \\ \\ \sf \colorbox{gold} {\red(ANSWER ᵇʸ ⁿᵃʷᵃᵇ⁰⁰⁰⁸}$

Answer 2

Explanation:

What is the angle of incidence of a ray if the reflected ray is at an angle of 90� to the incident ray? Ans. The angle of incidence ray will be 45°. Q.

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