Hello,
I have PC with specification
Intel Core i5
16 GB RAM DDR4
VGA : GALAX GeForce GTX 1050 Ti
MotherBoard : MSI B250I Gaming Pro AC
so can i use My PC for mining ?
Yes you can. But you can't mine Bitcoin with it, or with any computer for that matter.
You can mine Ethereum and Zcash with relatively good earnings but your only problem would be power consumption, unless you don't care about it and want to mine for fun, then go for it.