Answer to Question #18491 in Optics for Hitesh Patidar

Question

why does light not harm us while it's speed is so large?

Answer 1

Speed is large but the mass is small so the force isn't too huge to make harm. The light pressure is very feeble, but can be detected by allowing the radiation to fall upon a delicately poised vane of reflective metal in a Nichols radiometer.