Assertion(A): Footstep cannot be used as a standard unit of measurement.
Reason(R): Ancient units are not fixed in length and vary from person to person.

Both A and R are true, but R is not the correct explanation of A.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A is true, but R is false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both A and R are true and R is the correct explanation of A

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

A is false, but R is true.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Both A and R are true and R is the correct explanation of A
Standard unit of length is a fixed length all over the world, which does not vary with time, place, and person and is not affected by any natural phenomenon.

Footstep is the length of a foot of a person. Footstep cannot be used as a standard unit of length as it is not fixed in length and varies from person to person.
Hence, both A and R are true and R is the correct explanation of A.

Suggest Corrections

Similar questions

Q. Why ancient methods of measurement are not preferred for taking measurements?

It is desirable that the standards of units be easily available, invariable, indestructible and easily reproducible. If we use foot of a person as a standard unit of length, which of the above features are not present?

Q. The length of a footstep cannot be used as a unit of length as it is not consistent for everyone.

Q. Why can a cubit or a yard not be used as a standard unit of length?

Why can we not use the length of a rod as a standard unit?

Join BYJU'S Learning Program

Assertion(A): Footstep cannot be used as a standard unit of measurement. Reason(R): Ancient units are not fixed in length and vary from person to person.

Assertion(A): Footstep cannot be used as a standard unit of measurement.
Reason(R): Ancient units are not fixed in length and vary from person to person.