Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 5 (Q.No. 15)

Electronic Devices and Circuits

15.

Assertion (A): Alkali metals are used as emitters in phototubes.

Reason (R): Alkali metals have low work functions.

Both A and R are true and R is correct explanation of A

Both A and R are true but R is not a correct explanation of A

A is true but R is false

A is false but R is true

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

1 comments Page 1 of 1.

Priya said: 9 years ago

Please explain it.

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