SSC GD 2024 PYQ — Question 35

The correct answer is option 1 i.e. Hour(hr.).

• The second is the fundamental unit of time.
• It is defined as the 9,192,631,770 radiation cycles that correspond to the change from one of two hyperfine levels of the cesium-133 atom's ground state.
• The basic units of measurement for time in a variety of settings, including daily activities and scientific inquiry, are seconds.