If a pendulum clock, keeps correct time at sea level is taken to a place 16 km below sea level, the clock will approximately

Options

A. gains 13.5 s/day
B. loses 13.5 s/day
C. loses 108 s/day
D. gains 7 s/day

Answer

C

Explanation

The pendulum loose time perday at a depth of is,
`=(13.5d)/(2)=(13.5xx16)/(2)=13.6s`
`=108s`