Cathode ray tube is operating at 5 kV. Then ,what is the K.E. acquired by the electrons ?

5 eV

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5 MeV

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5 keV

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5 V

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Solution

The correct option is C 5 keV
K.E.= p.d. x e
= 5kV x e
= 5 keV.

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Cathode ray tube is operating at 5 kV. Then ,what is the K.E. acquired by the electrons ?

The correct option is C 5 keVK.E.= p.d. x e = 5kV x e = 5 keV.

The correct option is C 5 keV
K.E.= p.d. x e
= 5kV x e
= 5 keV.