Question

one calorie is nearly equal to
1.1/4.2j
2.1j
3.4200 j
4.4.2j

Answer 1

4.184 joules = 1 calorie
so answer is 4.4.2j (approx)

Answer 2

Hey Mate ,

Here is the answer ,
______________________________________________________________

One calorie is equal to 4184 joules (J).

Among the options , the option (3) i.e. 4200 J is the nearest to actual value therefore option (3) is right.
______________________________________________________________
Hope this helped you !!
Please mark as brainliest !!