Match List- I with List- II.

List-I (Measured values)
(A) 0.001213
(B) $2.1 imes 10^{16}$
(C) 3.70
(D) 3000

Question

Match List- I with List- II.

List-I (Measured values)
(A) 0.001213
(B) $2.1 	imes 10^{16}$
(C) 3.70
(D) 3000

List-II (Significant figures)
(I) 2
(II) 3
(III) 1
(IV) 4

Accepted Answer

The number of significant figures is determined by standard rules:

1.  **(A) 0.001213**: Zeros preceding the first non-zero digit are not significant . The digits 1, 2, 1, and 3 are significant, giving a total of **4 significant figures (IV)**.
2.  **(B) $2.1 	imes 10^{16}$**: In scientific notation, all digits in the coefficient are significant . The digits 2 and 1 are significant, giving **2 significant figures (I)**.
3.  **(C) 3.70**: Zeros at the end of a number are significant if they are to the right of the decimal point . The digits 3, 7, and 0 are significant, giving **3 significant figures (II)**.
4.  **(D) 3000**: Terminal or trailing zeros in a number without a decimal point are not significant . Only the digit 3 is significant, giving **1 significant figure (III)**.

Matching these results yields: A-IV, B-I, C-II, D-III.

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