Physics Mcqs Archives - Page 17 of 85 -

Identify the correct statement about minority carriers_____________?

Identify the correct statement about minority carriers_____________?

A. holes in n-type and free electrons in p-type
B. holes in n-type and p-type
C. free electrons in n-type and holes in p-type
D. free electrons in n-type and p-type

Identify the correct statement about minority carriers_____________? Read More »

Electronics, Physics Mcqs

In n-p-n transistor, p works as______________?

Electronics, Physics Mcqs / admin

In n-p-n transistor, p works as______________?

A. collector
B. emitter
C. base
D. any of above

In n-p-n transistor, p works as______________? Read More »

Electronics, Physics Mcqs

p-n junction when reversed biased acts as a_______________?

Electronics, Physics Mcqs / admin

p-n junction when reversed biased acts as a_______________?

A. capacitor
B. inductor
C. on switch
D. off switch

p-n junction when reversed biased acts as a_______________? Read More »

Electronics, Physics Mcqs

Semi-conductor germanium and silicon are_________________?

Electronics, Physics Mcqs / admin

Semi-conductor germanium and silicon are_________________?

A. pentavalent
B. trivalent
C. divalent
D. tetravalent

Semi-conductor germanium and silicon are_________________? Read More »

Electronics, Physics Mcqs

Electrons present in p-type material due to thermal pair generation are_____________?

Electronics, Physics Mcqs / admin

Electrons present in p-type material due to thermal pair generation are_____________?

A. majority carriers
B. minority carriers
C. dual carriers
D. blockers

Electrons present in p-type material due to thermal pair generation are_____________? Read More »

Electronics, Physics Mcqs

The velocity of laser light is___________________?

Atomic Spectra, Physics Mcqs / admin

The velocity of laser light is___________________?

A. Less than ordinary light
B. More than ordinary light
C. Equal to ordinary light
D. Different for different colours or frequency

The velocity of laser light is___________________? Read More »

Atomic Spectra, Physics Mcqs

Reflecting mirrors in laser is used to______________?

Atomic Spectra, Physics Mcqs / admin

Reflecting mirrors in laser is used to______________?

A. Further stimulation
B. Lasing more
C. For producing more energetic lasers
D. All

Reflecting mirrors in laser is used to______________? Read More »

Atomic Spectra, Physics Mcqs

In He-Ne laser the lasing action is produced by_______________?

Atomic Spectra, Physics Mcqs / admin

In He-Ne laser the lasing action is produced by_______________?

A. Ne only
B. He-Ne both
C. Electrons of He
D. Electrons Ne

In He-Ne laser the lasing action is produced by_______________? Read More »

Atomic Spectra, Physics Mcqs

The metastable state for an atom in laser light is_____________?

Atomic Spectra, Physics Mcqs / admin

The metastable state for an atom in laser light is_____________?

A. 10-4 sec
B. 10-5 sec
C. 10-3 sec
D. 10-8 sec

The metastable state for an atom in laser light is_____________? Read More »

Atomic Spectra, Physics Mcqs

In laser production the state in which more atoms are in the upper state than in the lower one is called_____________?

Atomic Spectra, Physics Mcqs / admin

In laser production the state in which more atoms are in the upper state than in the lower one is called_____________?

A. Metal stable state
B. Normal state
C. Inverted population
D. All the above

In laser production the state in which more atoms are in the upper state than in the lower one is called_____________? Read More »

Atomic Spectra, Physics Mcqs