Monochromatic light of wave length 480mm travelling in air is incident on a glass surface.Find wave length,frequency and the velocity of light in glass n=1.5 for glass and c=3*10^8m/s
2006-09-12 03:02:07 · 4 answers · asked by yahoo 1 in Science & Mathematics ➔ Physics
To solve for wavelength, frequency, and speed of light through the glass plate, you need to know some basic equations.
1) n = speed of light in vac / speed of light through the glass
solve for speed of light through glass and the answer is 2.8e8 m/s
2) wavelength through glass = wavelength in air / index of refraction
answer: 320 nm
3) frequency through glass = speed of light through glass / wavelength through glass. answer: 6.25e5
2006-09-12 17:02:31 · answer #1 · answered by Inquisitive guy 2 · 0⤊ 0⤋
That would be 480nanometers not millimeters
2006-09-12 10:08:22 · answer #2 · answered by Anonymous · 0⤊ 0⤋
e=mc2
2006-09-12 10:07:17 · answer #3 · answered by The Foosaaaah 7 · 0⤊ 0⤋
c_in_glass=c/n
l_in_glass=l/n
2006-09-12 10:11:50 · answer #4 · answered by ManOfPhysics 3 · 0⤊ 0⤋