Question

The smallest four digit number which is perfect square is ____.

• A. $1000$
• B. $1016$
• C. $1024$
• D. $1036$

Answer 1

The correct option is C $1024$

Consider,

$31\times 31=961$

$32\times 32=1024$

$\therefore$ Smallest four-digit number which is perfect square is $1024$.