List of top Physics Questions on Significant figures asked in JEE Main

For an experimental expression \( y = \frac{32.3 \times 1125}{27.4} \), where all the digits are significant. Then to report the value of \( y \), we should write:
Match List - I with List - II.
List - I(Number)List - II(Significant figure)
(A) 1001(I) 3
(B) 010.1(II) 4
(C) 100.100(III) 5
(D) 0.0010010(IV) 6
Choose the correct answer from the options given below :
Time periods of oscillation of the same simple pendulum measured using four different measuring clocks were recorded as 4.62 s, 4.632 s, 4.6 s and 4.64 s. The arithmetic mean of these reading in correct significant figure is.