An x-ray beam with wavelength 0.230 nm is directed at a crystal. as the angle of incidence increases, you observe the first strong interference maximum at an angle 22.5 ∘. what is the spacing d between the planes of the crystal?

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

there are no components of a physical goal mentioned on the list of choices that you've provided.

prndulum needs thread, weight clock to time swings