Q.

Assertion (A): The rate measured over a long time interval is called average rate. 

Reason (R): The rate measured for an infinitesimally small interval is called instantaneous rate.

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a

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

b

Both A and R are true and R is not correct explanation of A

c

A is correct and R is incorrect

d

A is incorrect and R is correct

answer is B.

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Detailed Solution

Average rate: The rate measured over a long time interval is called average rate.

Instantaneous rate: The rate measured for an infinitesimally small interval is called instantaneous rate.

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