Source: Extra Practice
Which of the following is NOT a unit of time?
Options
Option A is correct
Light year
Option B
Leap year
Option C
Lunar month
Option D
Solar day
Explanation
A light year is the distance travelled by light in vacuum in one year; it is a unit of distance ([L]), not time. Leap year, Lunar month, and Solar day are all measures of time intervals. This is a common trap in NCERT physics.