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QJEEM17Phe52f: JEE Main 2017 Physics - Class 12 JEEM17Phe52f Solution: Two deuterons undergo nuclear fusion to form a Helium nucleus.…

Two deuterons undergo nuclear fusion to form a Helium nucleus. Energy released in this process is : (given binding energy per nucleon for deuteron = 1.1 MeV and for helium = 7.0 MeV)

Multiple Choice Options

  • A 30.2 MeV
  • B 32.4 MeV
  • C 23.6 MeV
  • D 25.8 MeV

Step-by-Step Verified Solution

1H2 + 1H2  →  2He4

No. of proton in one dueteron = 2

∴ Total protons in two dueterons = 2 × 2 = 4

∴ Binding energy of two dueteron

= 1.1 × 4 = 4 : 4 MeV

In (2He4) no of protons = 4

∴ Binding energy of (2He4) nuclei = 4 × 7 = 28 Mev

Energy released in this process = 28 − 4.4 = 23.6 MeV

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