License key for optics and modern physics by bm sharma

Can anyone please provide license key for 3e edition optics and modern physics book by bm Sharma as my license key has torned some bit due to my carelessness

I hope it’s correct because I damaged it while scratching :sweat_smile:

Actually it is torn by this part you can see

I tried scratching but it did not work so i peeled it off :sweat_smile: