Answer all parts for 100% feedback !!! (5%) Problem 10: Two mirrors are arranged

Question

Answer all parts for 100% feedback !!!

(5%) Problem 10: Two mirrors are arranged perpendicular to each other. A ray of light reflects off mirror 1 with incident angle ?,-74 degrees, then reflects off mirror 2 with angle 6^ Otheexpertta.com 20% Part (a) If the angle the light reflected from mirror 1 is ?1, express e, in terms ofa Grade Summa Deductions Potential ry 0% 100% Submissions Attempts remaining: 5 (5% per attempt) detailed view DELI CLEAR Submit Hint I give up! Hints:-deduction per hint. Hints remaining:.! Feedback: 200 deduction per feedback. -? 20% Part (b) If the incident angle of the light on mirror 2 is ?2, express ?2 in terms of 2000 Part (c) Express ?¡n terms ofa. 20% Part (d) Solve for the numerical value ofer in degrees 20% Part (e) What is the relation between the direction of the incident light and the direction of the emitted light?

Explanation / Answer

(a) from 1 law of reflection

as the angle of reflection is equal to the angle of incidence ,

theta1 = theta i

(b)

for the triangle formed at the joint of the mirror

90 + (90 - theta2) + (90 - theta1) = 180

theta1 + theta2 = 90 degree

and from part (1) , theta1 = theta i

theta 2 = 90 - theta i

(c)

as the angle of reflection is equal to the angle of incidence ,

theta f = theta 2

theta f = 90 - theta i

(d)

theta i = 74 degree

therefore ,

theta f = 90 - 74

theta f = 16 degree

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.