What do radio waves and microwaves have in common?

a) both are at the side of the spectrum that has the highest radiant energy

b) both are found next to visible light on the electromagnetic spectrum

c) both are at the side of the spectrum that has the lowest frequency

d) both are at the side of the spectrum that has the shortest wavelengths

Option C. is correct.

Explanation: Microwaves and radio waves are located on the left side of visible light and have the longest wave lengths and smallest frequencies.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible