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  9. Q46

HPSC HCS 2017 · Question 46 of 100

Which of the following is not a radioactive particle?

Science & Tech

  1. AAlpha
  2. BDeltaCorrect
  3. CBeta
  4. DGamma

Answer: B. Delta

Explanation

Alpha, beta and gamma are the major radioactive emissions; there is no 'delta' radioactive particle.

Source: Question text: HPSC HCS (Ex.Br.) Prelims GS Paper-I held 31-Mar-2019 (Drishti IAS official-paper transcription; cross-checked with Abhimanu IAS Set-D solved paper). Answers: official HPSC Series-D answer key.

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