Question

Which of the following is not true of fluorescent lights?
a) They are gas-filled tubes.
b) The gas emits visible light when an electric current passes through it.
c) The rays emitted by the gas are absorbed by the coating on the walls of the tubes.
d) The walls of the tubes are coated with a fluorescent substance.

Answer 1

Answer:

Fluorescent microscopy works because the emitted light is of lower energy and has a longer wavelength than the light that is used for illumination.

So, the correct option is 'Fluorescent microscopy uses normal light to view molecules'.

Answer 2

Answer:

opition-B thank you bye