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Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 13 (Q.No. 39)
Electronic Devices and Circuits
39.

Assertion (A): The frequency of light used for photoelectric emission is high.

Reason (R): As per Einstein's equation 0.5 mv2 < hf - Uw.

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:
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