A sample is bombarded by incident X-rays, and free electrons in the sa

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A sample is bombarded by incident X-rays, and free electrons in the sample scatter some of the X-rays at an angle of θ = 119.0∘ with respect to the incident X-rays, as shown in the drawing. The scattered X rays have a momentum whose magnitude is 1.973×10−24 kg⋅m/s. Determine the wavelength (in nm) of the incident X-rays. (For accuracy, use h = 6.626×10−34 J⋅s, c = 2.998×108 m/s, and m = 9.109×10−31 kg for the mass of an electron.)

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A sample is bombarded by incident X-rays, and free electrons in the sample scatter some of the X-rays at an angle of

θ = {119.0}^{\circ}

with respect to the incident

X

-rays, as shown in the drawing. The scattered

X

rays have a momentum whose magnitude is

1.973 \times 10^{- 24} kg \cdot m / s

. Determine the wavelength (in nm ) of the incident X-rays. (For accuracy, use

h = 6.626 \times 10^{- 34} J \cdot s, c = 2.998 \times 10^{8} m / s

, and m

= 9.109 \times 10^{- 31} kg

for the mass of an electron.)

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