On a clear cloudless day, the sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we visually perceive red and orange colors because the blue light has been scattered out and away from the line of optical discernment.
Hope this helps! :)
Answer:
Explanation:
Given
initial angular velocity is
when motor is turned of it started decelerating with angular acceleration
angle turned before coming to halt
here final angular velocity is zero
No of revolutions will be
Answer:
0.145 m
Explanation:
Data provided in the question:
wavelength of red light, λred = 656 nm = 656 × 10⁻⁹ m
wavelength of blue light, λblue = 486 nm = 486 × 10⁻⁹ m
line density = 500 per mm
length, L = 1.3 m
d = 1 mm / 500 lines
= 0.002 mm = 0.002 × 10⁻⁶ m
m = 1 [for the first order bright fringe]
Now,
The positions can be determined by using the formula
θ =
& y = Ltan(θ)
thus,
θred =
= 19.15°
yred = Ltan(θred)
= (1.5) × tan(19.15°)
= 0.521 m
similarly,
θblue =
= 14.1°
yblue = Ltan(θblue)
= 1.3 × tan(14.1°)
= 0.376 m
Hence,
distance between the first-order red and blue fringes
= 0.521 m - 0.376 m
= 0.145 m
<span>If you have only two
data from two recording stations then you will be having a hard time finding
the correct location of the epicenter. This is because triangulation method requires
3 recording station. If you have 2 recording station, the 2 circles will
intersect at 2 points giving you 2 locations that could possibly be the
epicenter.</span>
Answer:
independent variable is the answer! hope that helps :D