An electron beam after collision with the target produces X-rays of wavelength $4 A^{0}$ . The velocity of the electron beam is
$3.31 \times 10^{7} m / s$
$9.31 \times 10^{7} m / s$
$6.31 \times 10^{7} m / s$
$8.31 \times 10^{7} m / s$

Question

An electron beam after collision with the target produces X-rays of wavelength 4 A-0- The velocity of the electron beam is3-31times 10-7-m-s9-31times 10-7-m-s6-31times 10-7-m-s8-31times 10-7-m-s

Toppr Admin · Accepted Answer

Energy of x-ray beam -hc-x3BB-4-95-x2217-10-x2212-16J-12mv2-xA0-and it gives v-6-31-x2217-107-xA0-m-s-So- the answer is option -B-

An electron beam after collision with the target produces X-rays of wavelength 4A0. The velocity of the electron beam is3.31×107m/s9.31×107m/s6.31×107m/s8.31×107m/s

Energy of x-ray beam =hcλ=4.95∗10−16J=12mv2 and it gives v=6.31∗107 m/s.So, the answer is option (B).

An electron beam after collision with the target produces X-rays of wavelength $4 A^{0}$ . The velocity of the electron beam is
$3.31 \times 10^{7} m / s$
$9.31 \times 10^{7} m / s$
$6.31 \times 10^{7} m / s$
$8.31 \times 10^{7} m / s$

Energy of x-ray beam $= \frac{h c}{λ} = 4.95 * 10^{- 16} J = \frac{1}{2} m v^{2}$ and it gives $v = 6.31 * 10^{7}$ m/s.
So, the answer is option (B).