As shown above, two beam of laser light are shown onto two different pieces of p
ID: 1308834 • Letter: A
Question
As shown above, two beam of laser light are shown onto two different pieces of plastic. The two beams both have a wavelength of A = 550 nm and start out in phase 2.5 m to the left of the plastic pieces. The top piece, #1, has an index of refraction of 1.68 and a thickness of 3.6 pm. The bottom piece, #2, has an index of refraction of 1.92 and a thickness of 3.15 pm. The beams continue on and shine on a wall 2.2 m to the right. Expressed in terms of wavelengths, what is their phase difference when they both have emerged from the plastic? Which light beam will have the longer wavelength after they both have emerged from the plastic? Which light beam will have the higher frequency after they both have emerged from the plastic? Which light beam will hit the wave to the right after they both have emerged from the plastic?Explanation / Answer
1. 2.5m out of phase
2. option 3...there will be no difference
3.option 3...there will be no difference
4.option 3...there will be no difference
bcoz phase diff. introduced by plastic is zero...product of r.i and thickness is same in both cases
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.