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Assertion (A) The number 0.00764 has thr...

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.

Text Solution

Verified by Experts

The correct Answer is:
A
If the number is less than one, the zero on the right of decimal point but to the left to the first non-zero digit are not significant, i.e., in 0.00764, 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).
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Knowledge Check

  • A) All zeros to the right of the last nonzero digit after the decimal point are significant. B) If the number is less than one, all the zeros to the right of the decimal point but to the left of the first nonzero digit are not significant.

    A
    Only A is correct
    B
    A, B are correct
    C
    Only B is correct
    D
    A, B are wrong

  • (A) All zeros to the right of the last nonzero digit after the decimal point are significant. (B) If the number is less than one, all the zeros to the right of the decimal point but to the left of the first nonzero digit are not significant

    A
    only A is correct
    B
    A, B are correct
    C
    only B is correct
    D
    A,B are wrong

  • All zeros to the right of the last nonzero digit after the decimal point are significant. B) If the number is less than one, all the zeros to the right of the decimal point but to the left of the first nonzero digit are not significant.

    A
    Only A is correct
    B
    A, B are correct
    C
    Only B is correct
    D
    A, B are wrong

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