Physics Physics Mcqs
Q In He-Ne laser the lasing action is produced by_______________?
  • A A. Ne only
  • B B. He-ne both
  • C C. Electrons of he
  • D D. Electrons ne
Previous The metastable state for an atom in laser light is_____…
Next Reflecting mirrors in laser is used to______________?
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
Ψ·ΩˆΫŒΩ„ ΨͺΩ†Ϊ― Ψ±Ψ§Ψ³Ψͺہ، Ω†Ψ΄Ψͺوں Ϊ©Ϋ’ Ψ―Ψ±Ω…ΫŒΨ§Ω† Ψ±Ψ§Ψ³Ψͺہ

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