All categories

2 years ago

A grating has 470 lines/mm. how many orders of the visible wavelength 538 nm can it produce in addition to the m = 0 order?

Chemistry

1 answer:

maria [59]2 years ago

7 0

Three complete orders on each side of the m=0 order can be produced in addition to the m = 0 order.

The ruling separation is

d=1 / (470mm −1) = 2.1×10⁻³ mm

Diffraction lines occur at angles θ such that dsinθ=mλ, where λ is the wavelength and m is an integer.

Notice that for a given order, the line associated with a long wavelength is produced at a greater angle than the line associated with a shorter wavelength.

We take λ to be the longest wavelength in the visible spectrum (538nm) and find the greatest integer value of m such that θ is less than 90°.

That is, find the greatest integer value of m for which mλ<d.

since d / λ = 538×10⁻⁹m / 2.1×10 −6 m ≈ 3

that value is m=3.

There are three complete orders on each side of the m=0 order.

The second and third orders overlap.

Learn more about diffraction here : brainly.com/question/16749356

#SPJ4

You might be interested in

Why is CCl4 classified as a non polar molecule?

Lerok [7]

<span>CCl4 is a non polar molecule because though each of the C-Cl bond is polar but the resultant of all these dipole moments is zero as its a symmetrical tetrahedral shape molecule ,and their is a cancellation of dipole moment in each pair.</span>

6 0

3 years ago

The equilibrium constant, Kc , for the decomposition of COBr2 COBr2(g) ↔ CO(g) + Br2(g) is 0.190. What is Kc for the following r

charle [14.2K]

Answer:

$2CO(g)+2Br_2(g)\rightleftharpoons 2COBr_2(g)$

27.70 is $K_c'$ for the reaction.

Explanation:

$COBr_2(g)\rightleftharpoons CO(g) + Br_2(g)$

The equilibrium constant of the reaction = $K_c=0.190$

The expression of equilibrium constant is given by :

$K_c=\frac{[CO][Br_2]}{[COBr_2]}$ ..[1]

$2CO(g)+2Br_2(g)\rightleftharpoons 2COBr_2(g)$

The equilibrium constant expression for above reaction can be written as:

$K_c'=\frac{[COBr_2]^2}{[CO]^2[Br]^2}$

$K_c'=\frac{1}{(K_c)^2}$ ( from [1])

$K_c'=\frac{1}{(0.190)^2}=27.70$

27.70 is $K_c'$ for the reaction.

7 0

4 years ago

Which of the following accurately represents a carbon source and the process that releases carbon from that source? A. Fossil fu

Andre45 [30]

Option C

Plants, cellular respiration accurately represents a carbon source and the process that releases carbon from that source

<u>Explanation:</u>

Every existing body supplies CO2 off while they evoke power from their food through cellular respiration. Plants and creatures present off CO2 while living and respiring and during lifeless and rotting. Plants are significant carbon sinks, gaining up enormous volumes of CO2 through the manner of photosynthesis.

While plants also discharge CO2 during the means of respiration, the volume of CO2 exercised up by plants by photosynthesis and discharged by exhalation approximately matches out. Volcanic action, forest wildfires, and diverse anthropological exercises deliver carbon.

3 0

3 years ago

Which of the following is an example of pure research? searching for fuels other than gasoline to power cars producing heat-resi

Sliva [168]

I think the correct answer would be the third option. An example of a pure research would be creating synthetic elements to study their properties. Pure research is also known as fundamental or basic research. It has an exploratory nature wherein it is done without any end use in mind. It is mostly out of the curiosity or intuition of a researcher. Most of the study under this type is aiming to advance an existing knowledge by explaining or identifying the relationship of the variables being studied. It is aimed at improving theories in order to the understanding of a specific phenomenon.

4 0

3 years ago

Why does landforms change occurred

kherson [118]

Erosion etc. if it's specific then rain and weathering maybe

5 0

4 years ago