if the gravity of a planet or star dosent affect light, why does the gravity of a black hole infelunce light?, is it

if the gravity of a planet or star dosent affect light, why does the gravity of a black hole infelunce light?, is it the intensity of the gravity?

Posted on March 20, 2015 by in Question. Comments Off on if the gravity of a planet or star dosent affect light, why does the gravity of a black hole infelunce light?, is it