A photon of wavelength 1.50 × 10^-10 m is scattered at an angle of 90° in the Compton effect. The wavelength of the scattered photon is A)1.52 × 10^-10 m B)1.49 × 10^-¹⁰ m C)1.48 × 10^-10 m D)1.51 × 10^-10 m E)1.50 × 10^-10 m

Question

Quizplus · Accepted Answer

The Compton wavelength shift formula is Δλ = (h/mc)(1 - cos θ). For θ = 90°, Δλ = h/mc. Using h/mc ≈ 2.43 × 10^-12 m, the new wavelength is 1.50 × 10^-10 m + 2.43 × 10^-12 m = 1.52 × 10^-10 m.

A Photon of Wavelength 1