MPSC Rajyaseva 2014 CSAT — Question 18
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चतुःस्तरीय लेझर दरम्यानच्या प्रक्रियेमध्ये, अंशस्थिर स्थितीचे परिवहन ______ संपुष्टात येते. / During lasing action of a four level laser transition from metastable state ends at :
a)उच्चतम उत्तेजीत स्थितीत / Higher excited state
b)निम्नतम स्थिती / ground state
c)अंशस्थिर आणि निम्नतम स्थितीच्या मध्ये / Intermediate state between metastable and ground state✓ Correct
d)यापैकी एकही नाही / None of the above
In a four-level laser, the transition from the metastable state during lasing action ends at an intermediate state located just above the ground state.