CRT is the most important component of a CRO ___

Assertion ( A ): CRT is the most important component of a CRO.

Reason ( R ): When an electron beam strikes the screen of CRT, a spot of light is produced.

A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true R is false
D. A is false R is true

Show Answer

Answer: B

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