To confirm whether drinking water contains a gamma emitting isotope or not, which one of the following scientific apparatus can be used?

Options :
  1. Spectrophotometer
  2. Microscope
  3. Scintillation counter
  4. Lead plate
Answer and Explanation :-

Answer: Option 3

Explanation:

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You must learn to know the difference between tales and the truth, my Liza, she would say. Fairy tales have a habit of ending too soon. They never show what happens afterwards when the prince and princess ride off the page.
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