A 500kV is applied across an X-ray tube. Calculate the maximum velocity of the electrons produced [Me = 9.1 x 10^-31kg, e = 1.6 x 10^-19C]

A.

4.2 x 10⁸ms^-1

B.

1.9 x 10⁸ms^-1

C.

4.2 x 10⁵ms^-1

D.

1.8 x 10⁵ms^-1

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Correct answer is A

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