Compared to the internal resistance of a voltmeter , the internal resistance of an ammeter is
1) smaller
2) greater
3) the same

In a system, when potential energy decreases, then entropy also decreases. true false

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these