JIPMER2015PhysicsExperimental Physics
Universal time is based on
Options
- Arotational effect of the earth about its axis
- Bvibrations of cesium atom
- Corbital motion of the earth around the sun
- Doscillation of quartz crystal
Correct answer
A. rotational effect of the earth about its axis
Step-by-step solution
Time defined in terms of the rotation of the earth is called Universal Time (UT).