Question

Which of the following options explains the process of ‘sputtering’ that occurs in Hollow Cathode Lamp?

a.

Positive ions collide with cathode surface and metal atoms from cathode are ejected

b.

Negative ions collide with cathode surface and metal atoms from anode are ejected

c.

Positive ions collide with negative ions and metal atoms from anode are ejected

d.

Positive ions collide with negative ions and photons are ejected

Answer: (a).Positive ions collide with cathode surface and metal atoms from cathode are ejected

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Q. Which of the following options explains the process of ‘sputtering’ that occurs in Hollow Cathode Lamp?

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