Q230
Consider the following statements: He-Ne laser 1. gives continuous output 2. emits red light 3. requires a DC magnet 4. can be voice modulated by using a Kerr cell Which of these statements are correct?
A.
1, 2 and 3
B.
1, 3 and 4
C.
1, 2 and 4
AnswerD.
2, 3 and 4
Answer: Option C
Solution
Answer: Option C
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