Physics-Significant Figures
NEET Physics Significant Figures Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 11
Assertion (A): The number 0.004507 has four significant figures. | Reason (R): For a number less than 1, the zero(s) on the right of decimal point but to the left of the first non-zero digit are not significant.
A
Both A and R are true, and R is the correct explanation of A.
B
Both A and R are true, but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
Correct Answer
Option A
Detailed Explanation
In the number 0.004507, the zeros to the left of 4 are not significant, leaving 4, 5, 0, and 7 as significant figures. The reason explains why these initial zeros are not counted.
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