Q: A primary fuel is that which is used in the same form as it occurs in nature. Which of the following is not a primary fuel?
Q: After the first photons of light are produced, which process is responsible for amplification of the light?
Q: Which of these has the highest calorific value?
Q: Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called ___.
Q: What is the main constituent of coal gas?
Q: What is the process responsible for producing photons in a diode laser?
Q: Some lasers are referred to as being “cw.” What does “cw” mean?
Q: Heating fuels in the absence of air is called 'Destructive Distillation', as it 'destroys' it to form simpler substances. What do we get when we do the same to wood?
Q: "Antifreeze" is used in car radiators to stop the liquid that cools the engine from, well, freezing when it gets cold outside. Water is one component of antifreeze; what is the other main component?
Q: What was the active medium used in the first working laser ever constructed?
Q: Aspirin can be found in many household medicine cabinets. But what is it chemically?
Q: What are three types of lasers?
Q: Once the active medium is excited, the first photons of light are produced by which physical process?
Q: If you wanted to lighten your hair at home, what is the active ingredient in the dye preparation that will lighten your hair?
|
