State PCS PYQPrelims 2022

UPPCS · Question 74

Which of the following (Quantity - S.I. Unit) is NOT correctly matched?

  1. Power of lens - Diopter
  2. Pressure - Pascal
  3. Activity of radio-active substance - Curie
  4. Heat - Joule
Show answer & explanation

Answer: (C) Activity of radio-active substance - Curie

Explanation

The SI unit of radioactivity is the becquerel; the curie is a non-SI unit.