Question

the significant figures of 3400 are ​

Answer 1

${\bold{\purple{Answer}}}$

Trailing zeros in a whole number are not significant.

Hence, 3400 has 2 significant digits only

Answer 2

Explanation:

2 significant numbers

3400 has only 2 significant number

as per the rule trailing zeroes in a whole number with no decimal shown are are not significant .