Branch of physics which deals with properties of light

A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?

The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g

Smallest intensity of a stimulus that you can detect 50 percent of the time is