Two plane waves with identical intensities and phase (i.e, same type of laser) p

Question

Two plane waves with identical intensities and phase (i.e, same type of laser) produce an interference pattern (with a period of 813 nm) at an interference plane located at z = 0. Assume the first wave makes an angle of 35 degree with the z-axis and the second is along the z-axis. Calculate the wavelength of the laser. Now assume that we change the incident angle of the second wave such that it makes an angle of -65 degree with the z-axis, while the first wave remains the same as in part (a), write the equation describing the intensity of the interference.

Explanation / Answer

a)

wavelength, lambda=813 nm

b)

I=Io*cos^2(theta/2)

I=Io*cos^2(-65/2)

I=0.71*IO

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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