<span>These kinds of systems are usually installed in the cockpits of aircrafts. It is an electronic computer-controlled display system. It is made up of several kinds of systems constituting the whole. The purpose of such a kind of display is to increase and widen the field of vision and decrease any kind of visual disturbances from the surroundings. The Flight Data Display another constituent of the system constantly updates the pilots with the status of and data related to the flight. This also includes information about the aircraft itself and navigation information too.</span>
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
Answer:
B but don't be surprised if it is not the answer given. It's just the best of a bunch of poor choices.
Explanation:
This is actually not an easy question to answer. It's one of those answers that has elements of "Some do and Some don't" in them.
A: is not true for painters and it is not necessarily true for C for painters.
D: photographer can pose his subjects. A painter can pose someone, but not always.
C: Answered under A.
I think the answer you are forced to choose is B, but neither one has to do it. Still life painters ( a bowl of fruit, a bouquet of flowers) and photographs pose the subjects carefully and do not want the fruit or flowers to move around.
I'd pick B, but it does not have to be the answer. I just think it is less wrong than the others.
Answer:
Selecting the Tiled windows arrangement option places the windows in a(n) Grid pattern on the screen.
Explanation: