Question
Question: Which one of the following instruments is not used for the measurement of length?...
Which one of the following instruments is not used for the measurement of length?
A
Atomic clock
B
Vernier calipers
C
Screw gauge
D
Spherometer
Answer
Atomic clock
Explanation
Solution
Vernier calipers, screw gauge and sphereometer are used for the measurement of length whereas atomic clock is used for the measurement of time.