Assertion (A) The number 0.00764 has three significant figures. Reason (R) If the number is less than 1, the zeros on the right of the decimal point but to the left of the first non-zero digit are not significant.

Question

Assertion (A) The number 0.00764 has three significant figures. Reason (R) If the number is less than 1, the zeros on the right of the 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.

Tardigrade Admin · Accepted Answer

If the number is less than one, the zero on the right of decimal point but to the left of the first non-zero digit are not significant, i.e. in

\underline{0} . \underline{00} 764

, the underlined zeroes are not significant. The number of significant digit is 3 .
Both assertion (A) and reason (R) are correct and reason (R) is the correct explanation of assertion (A).

Q. Assertion (A) The number 0.00764 has three significant figures. Reason (R) If the number is less than 1, the zeros on the right of the decimal point but to the left of the first non-zero digit are not significant.

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

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

(A) is true but (R) is false.

(A) is false but (R) is true.

Q. Assertion (A) The number $0.00764$ has three significant figures.
Reason (R) If the number is less than $1$ , the zeros on the right of the decimal point but to the left of the first non-zero digit are not significant.