F₁ = c / d²
F₂ = c / (3d)²
F₁/F₂ = 3² = 9
F₂ = 1/9 F₁
<span>The amount of dissolved oxygen in water may decrease
because of the increase in organic matter in the water. <span>Aquatic organisms breathe and use oxygen. Large amounts of
oxygen are consumed by the decomposition of bacteria (when there are large
amounts of dead matter to decompose, there will be a significant number of
bacteria). Examples: dead organic matter (algae), wastewater, garden waste,
oils and fats, all this results in a decrease in dissolved oxygen in the water.</span></span>
Answer:
There will be a phase change at the 1-1.38 interface and no phase change at the 1.38-1.33 interface.
At a thickness of lambda / 4 (y/4) one should get constructive interference for the reflected light.
y = 4 * 99.8 * 10E-9 m = 400 nm (about) = 4 * 10E-7 m
The color of this light will be violet or blue
Answer:
A) first laser
B) 0.08m
C) 0.64m
Explanation:
To find the position of the maximum you use the following formula:
m: order of the maximum
λ: wavelength
D: distance to the screen = 4.80m
d: distance between slits
A) for the first laser you use:
for the second laser:
hence, the first maximum of the first laser is closer to the central maximum.
B) The difference between the first maximum:
hence, the distance between the first maximum is 0.08m
C) you calculate the second maximum of laser 1:
and for the third minimum of laser 2:
Finally, you take the difference:
hence, the distance is 0.64m
Teens realize that things may be “shades of gray” after they enter Piaget’s formal operational stage. The Piaget's approach for Adolescent, also referred to asFormal operational stage is the stage in which adolescents develop their ability to think about abstract concepts, they become more argumentative and <span>indecisive.</span>