hello I\'m having a problem with this question can someone give a hand, if possi

Question

hello I'm having a problem with this question can someone give a hand, if possible can explain step by step, I know for part b we need to find the critical angle, but for part A I don't know how to prove,?????????

rn -sinsin 4. Light is incident on a water-air surface from below, as shown, with an angle cf incidence , 60°, (a) Prove whether the light will refract or reflect f (b) Either way, find the angle of the refracted or reflected beam rom the surface. Cant incy A) usng e nci dent air n=1.00 mule O US water n 1.33

Explanation / Answer

for water air interface

critical angle thetac

sinthetac = n2/n1

sinthetac = 1/1.33

thetac = 48.75

here in the problem the angle of incidence in water is greater than thetac

the light will undergo internal reflection

(b)

angle of reflection = angle of incidence = 60 degrees

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

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