Question

Assertion : $1.34 \times 10^{-3}$ and $1.23$ both have three significant figures.
Reason : Number other than zero are all significant.

• A. If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
• B. If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
• C. If the Assertion is correct but Reason is incorrect.
• D. If the Assertion is incorrect and Reason is correct.

Answer 1

Answer: (C)

For a number written in scientific notation all digits are significant. All the zeros to the right of the decimal point are significant.