Need help!! a Whrt is the tresuency of this ight? ( oits s the freqvency a mater

Question

Need help!! a Whrt is the tresuency of this ight? ( oits s the freqvency a material with an index of refraction of n . 1.25. lght after it enters the new material? (7 points) The lighe passes from the air inte a pusses from the air into a material with an index b. What i 2 (7 po s the frequency of this light after it enters the new c What is the speed of this light as it propagates throu gh the new material? (7 points) d. What is the wavelength of this light as it propagates through the new material? (8 points)

Explanation / Answer

for a electro magnetic wave c = lambda*f

c = speed of light = 3*10^8 m/s

f = frequency

lambda = wavelength

a)

f = (3*10^8)/(790*10^-9)

f = 3.97*10^14 Hz

----------

b)

when ever the light passes from one medium to another medium the frequency remains same

c)

vmed = c/n

vmed = speed of light in medium

c = speed of light in vacuum

n = refractive index of the medium

vmed = (3*10^8)/(1.25)

vmed = 2.4*10^8 m/s <<<------answer

-------------

d)

Lmed = Lair/n

Lmed = (790*10^-9)/1.25

Lmed = 632 nm <<------answer

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

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