With the use of the formula SinФ = nλ / d, there are 16 spectral orders which can be seen when it is illuminated by white light.
Given that a grating has 2000 slits/cm. That is,
d = 0.01 / 2000
d = 5 x 
m
The wavelength λ = (700 - 400) nm
λ = 300 x 
m
To calculate how many full spectral orders that can be seen (400 to 700 nm) when it is illuminated by white light, we will use the below formula
SinФ = nλ / d
Φ = 
(nλ / d)
When n = 1
Φ = (300 x / 5 x )
Φ = 3.4 degrees
when n = 2
Φ = (2 x 300 x / 5 x )
Ф = 6.9 degrees
When n = 3
Ф = (3 x 300 x / 5 x )
When n = 16
Ф = (16 x 300 x / 5 x )
Ф = (0.96)
Ф = 73.7 degrees
when n = 17
Ф = (17 x 300 x / 5 x )
Ф = (1.05)
Ф = Error ( that is, it does not exist)
Therefore, there are 16 spectral orders which can be seen when it is illuminated by white light.
Learn more about double slit here: brainly.com/question/4449144
i think its b cause if you were talking about ice it freezes the melts the evaporates to gas
Answer:b- Psuedoscience
Explanation:
It is a pseudoscience because it involves beliefs and practices which is mistakenly regarded as being based on scientific grounds.
No solid evidence is there which can prove that astrology is authentic and true that's why it is a Psuedo science
Answer:
Explanation:
By makingthe elctro fleild into a mass - field
Hey there! :D
Most good electrical conductors are metal. Actually, rubber is used around wires as an insulator to help the current stay in a direct flow. Wood and plastic don't handle current very well, as it will most likely burn the wood and melt the plastic.
"D" Copper is the best answer.
I hope this helps!
~kaikers <span />
