Q140 / 180 · JIPMER 2015 · Physics

Universal time is based on

  • Correct answer
    A
    rotational effect of the earth about its axis
  • B
    vibrations of cesium atom
  • C
    orbital motion of the earth around the sun
  • D
    oscillation of quartz crystal

Solution

Time defined in terms of the rotation of the earth is called Universal Time (UT).

Hence, the correct answer is option: 'A'.