In normal state of energy the incident high energy photons will be______________? April 17, 2025 by admin A. Stimulated B. Absorbed C. Cause X-ray emission D. Cause laser production
In laser production the state in which more atoms are in the upper state than in the lower one is called_____________? April 17, 2025 by admin A. Metal stable state B. Normal state C. Inverted population D. All the above
The metastable state for an atom in laser light is_____________? April 17, 2025 by admin A. 10-4 sec B. 10-5 sec C. 10-3 sec D. 10-8 sec
In He-Ne laser the lasing action is produced by_______________? April 17, 2025 by admin A. Ne only B. He-Ne both C. Electrons of He D. Electrons Ne
Reflecting mirrors in laser is used to______________? April 17, 2025 by admin A. Further stimulation B. Lasing more C. For producing more energetic lasers D. All
The velocity of laser light is___________________? April 17, 2025 by admin A. Less than ordinary light B. More than ordinary light C. Equal to ordinary light D. Different for different colours or frequency
Electrons present in p-type material due to thermal pair generation are_____________? April 17, 2025 by admin A. majority carriers B. minority carriers C. dual carriers D. blockers
Semi-conductor germanium and silicon are_________________? April 17, 2025 by admin A. pentavalent B. trivalent C. divalent D. tetravalent
p-n junction when reversed biased acts as a_______________? April 17, 2025 by admin A. capacitor B. inductor C. on switch D. off switch
In n-p-n transistor, p works as______________? April 17, 2025 by admin A. collector B. emitter C. base D. any of above
