Question

Kis temperature par celsius aur kelvin ka man equal hota h

Answer 1

It is assumed to be at -40℃ when the Celsius is equal to Fahrenheit. Celsius and Kelvin are never equal my friend.
It is only the equation that shows Celsius and Kelvin as- 0℃= 273K

Answer 2

here is your answer..
at -40*c ..celsius is equal to the kelvin..
hope it helped u