Explanation:
Given that,
Number of slits per cm,
The third fringe is obtained at an angle of,
We need to find the wavelength of light used. The grating equation is given by :
, n = 3
So, the wavelength of the light is 400 nm. Hence, this is the required solution.
Explanation:
A. answer is the correct answer
Water freezes at zero degrees Celsius (32 degrees Fahrenheit). The solid ice particles absorb heat energy from the warmer air, giving the particles energy and enabling them to move away from one another. ... This is what happens when the ice cube (a solid) turns into water (a liquid)
Answer:
With all of that information, he's telling us the train's VELOCITY.
Explanation:
Velocity is a vector quantity made of two parts: speed and direction.