Which of the following can be thought of as either a wave or a particle?

a. light
b. an electron
c. a proton
d. all of the above

Dry ice is solid carbon dioxide that is used in the transport of food and medicine. dry ice becomes a gas at –78.5°c without becoming a liquid first.

Rohit is trying to tune an instrument

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