Basic Snell’s Law and Index of Refraction 1.A ray of light traveling through air

Question

Basic Snell’s Law and Index of Refraction

1.A ray of light traveling through air (n = 1) hits a lake with an angle of 30° with respect to the normal. A diver in the lake sees the light at an angle of 22° with respect to the normal. Use Snell’s law to calculate the index of refraction of water.

2.Why is the index of refraction always greater than or equal to 1? (Hint: think of the definition n=c/v)
Conservation of charge
Nothing can go faster than the speed of light in a vacuum
Conservation of energy
Accelerating charged particles emit photons

Help please? How would I go about? Thanks!

Explanation / Answer

1) n1 * sin θ1 = n2 * sin θ2

n * sin(22) = (1) sin (30)

n = 1.4619

2) Nothing can go faster than the speed of light in a vacuum

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

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