F=190N
d=3.7m
w=?
we have,
w=fxd
=190nx3.7m
=703j#
Answer:
λ= 2455 nm
Explanation:
Constructive interference occurs when the optical path difference is equal to an integer multiple of wavelength. Let's examine the reflection on each face
On the first surface we go from a lower medium refractive index (air) to one with a higher index (film), whereby a phase change of pi (180º) is introduced. On the second surface instead of the beginning of refraction, it is from a higher index to a smaller one, so there is no phase change, with this we can write the normal interference equation.
2 t = (m + ½)
The term lann is the wavelength in the film that is related to the wavelength in the air by
= λ / n
2t = (m + ½) λ / n
λ = 2t n / (m + ½)
For the first constructive interference m = 0
λ = 2 0.448 10⁻⁶ 1.37 / (0 + ½)
λ = 2,455 10⁻⁶ m
λ = 2,455 10⁻⁶ m (10⁹ nm / 1m)
λ= 2455 nm
For m = 1
λ = 2 0.448 10-6 1.37/ (1 + ½)
λ = 0.81835 10-6 m
λ = 818 nm
We can observe that the length and where it corresponds to ultraviolet light, so there is no constructive interference for visible light.
Answer: When a liquid or gas is heated, the molecules move faster, bump into each other, and spread apart. Because the molecules are spread apart, they take up more space. ... The molecules move more slowly and take up less space. Therefore temperature can affect density.
Explanation:
What do you mean by your question?
Answer:
1 is community 2 habitat 4 producer 5 consumer 6 food chain 7 predator 8 prey sorry I don't know 4