NEET 2021 · Class 12

Organisms and Populations

In the exponential growth equation Nt = N0 e^{rt}, e represents

  1. (A)The base of number logarithms
  2. (B)The base of exponential logarithms
  3. (C)The base of natural logarithms
  4. (D)The base of geometric logarithms

The NCERT line that answers it

Verbatim line

$e$ = the base of natural logarithms (2.71828)

Chapter
Organisms and Populations
Section
11.1.2 Population Growth
Page
6
Words matched
7 of 7

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states '$e$ = the base of natural logarithms (2.71828)', which directly and conclusively identifies the correct answer among the options.

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Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

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Question text is reproduced from the published NEET 2021 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.