Answer:
200 nm
Explanation:
We need a constructive interference to see the bright reflection
we know that where m=1 and is the wavelength of the gasoline
so
putting the value of m and in thickness equation
so the thickness of the film will be 200 nm
Both yeah and no, depending on personal opinion
Answer:
See attached picture.
Explanation:
See attached picture for detailed explanation.
The answer is Laser Printer. It is a non impact printer that creates characters and images with dots by using a drum and toner. The main advantages of laser printers are speed, precision and economy. A laser can move very quickly, and because the laser beam has an unvarying diameter, it can draw more precisely, without spilling any excess ink.