1)The ratio of a photon energy to its frequency is

- its speed

-its wavelength

-its amplitude

-Planck's Constant

-none of these

2)When gas in a container is squeezed to half its volume and the temperature remains the same, the gas pressure___

-halves

-doubles

-quadruples

-remains the same

3)The voltage across the input terminals of a transformer is 110 Volts. The primary has 50 loops and the secondary has 25 loops. The voltage the transformer puts out is

- 25 V

-55V

-110 V

-220 V

-None of these