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  1. Which one of the following noble gases is used in miners cap lamps?

  2. Noble gas used in the miner's cap lamp is (a) krypton (b) argon …

  3. Which of the following noble gases is used in miner's cap lamp

  4. Science: Krypton Lamps - TIME

  5. Noble gas used in the miner's cap lamp is - EMBIBE

  6. Which one of the following noble gases is used in miner's cap lamps

  7. Miner's head lamp with krypton gas lamp

  8. 100 uses of krypton - All Uses of

  9. Shining a Light on Cap Lamps in Underground Mining

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