Question

What is meant by significant digits

Answer 1

This includes all digits except: All leading zeros; Trailing zeros when they are merely placeholders to indicate the scale of the number (exact rules are explained at identifying significant figures); and.

Answer 2

Significant digit :—

• Every measurement is incorrect and the last digit of the measurement is doubtful. Significant digit is number of reliable digit +first uncertain digit.

$\rule{200}2$

• If a no have no decimal, then trailing zeroes after last non-zero no. are not significant.

$\rule{200}2$

• If a no. is less than 1 then preceding zeros before First non- zero are not significant.