हिंदी

Which of the following gases are filled in electric bulbs? -

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प्रश्न

Which of the following gases are filled in electric bulbs?

विकल्प

  • Helium and Neon

  • Neon and Argon

  • Argon and Hydrogen

  • Argon and Nitrogen

MCQ

उत्तर

Argon and Nitrogen

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