X-rays illuminate a target and the scattered x-rays are detected. Given the wavelength of the incident

X-rays illuminate a target and the scattered x-rays are detected. Given the wavelength λ of the incident x-rays and the scattering angle θ, rank the scattered x-rays from largest wavelength to smallest wavelength.

(a) λ = 1.0 pm, θ = 90°; 

(b) λ = 1.0 pm, θ = 60°; 

(c) λ = 4.0 pm, θ = 120°; 

(d) λ = 1.6 pm, θ = 60°; 

(e) λ = 1.6 pm, θ = 120°; 

(f) λ = 4.0 pm, θ = 2.0°.