1 Joule is equal to :
(a) 106 erg
(b) 105 erg
(c) 107 erg
(d) 109 erg

(c) 10⁷ erg

Reason — The S.I. unit of heat is joule and its C.G.S. unit is erg, where 1 Joule = 10⁷ erg