Question

Which of the following is WRONG?

A) The basic unit of time is second
B) The time period of a given pendulum is constant
C) Distance between two cities are measured in kilometres
D) None of the above.

Answer 1

D

Step-by-step explanation:

•The unit of time is Second (sec) it is correct

•The time period of a given pendulum is constant because it depends on the length of the pendulum.

•And two cities are measured in kilometers

So None Of the Above!

Answer 2

It’s D the time period within pendulums are constant, distance is always measured with kilometers within cities and basic unit is always seconds.