Physics, 04.04.2020 14:36 Emiann222

In a double-slit interference experiment, the slit separation is 2.41 μm, the light wavelength is 512 nm, and the separation between the slits and the screen is 4.45 m. (a) What is the angle between the center and the third side bright fringe? If we decrease the light frequency to 94.5% of its initial value, (b) does the third side bright fringe move along the screen toward or away from the pattern's center and (c) how far does it move?

Answers: 2

Show answers

Answers

Answer from: brodybb5515

The angle between the center and the third side bright fringe is

$\theta = 39.60^o$

The third side bright fringe move away from the pattern's center

The distance by which it moves away is $\Delta z=0.3906 m$

Explanation:

From the question the

The wavelength is $\lambda = 512nm$

In the first question we a asked to obtain the angle between the center and the third side bright fringe

since we are considering the third side of the bright fringe the wavelength of light on the three sides would be evaluated as

$\lambda_{3} = 3 * 512nm$

The slit separation is given as $d = 2.41 \mu m$

The angle between the center and the third side bright fringe is

$\theta = sin^{-1} (\frac{\lambda_3}{d} )$

$\theta = sin^{-1} (\frac{3 *512*10^{-9}}{2.24*10^{-6}} )$

$= sin^{-1} (0.6374)$

$\theta = 39.60^o$

When the frequency of the light is reduced the wavelength is increased

i.e $f = \frac{c}{\lambda}$

and this increase would cause the third side bright to move away from the pattern's center

Now from the question frequency is reduce to 94.5% this mean that the wavelength would also increase by the same as mathematically represented below

$\lambda_{new} = \frac{512 *10^{-9}}{0.945}$

$= 0.542 \mu m$

The angle between the center and the third side bright fringe is for new wavelength

$\theta = sin^{-1} (\frac{3 *512*10^{-9}}{2.41*10^{-6}} )$

= 42.46^o

The distance traveled away from the pattern's center is mathematically represented as

$z = A tan \theta$

Where A is the separation between the slits and the screen

$\Delta z = 4.45(tan 42.46 - tan39.60 )$

$\Delta z=0.3906 m$

Answer from: Quest

Iknow the first part it is the average star i am not 100% sure

Answer from: Quest

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf, ℰ, to a battery's terminal voltage, v, current, i, and internal resistance, r, is ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.

Another question on Physics

Physics, 21.06.2019 21:30

Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s

Answers: 1

Answer

Physics, 22.06.2019 01:20

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

Answers: 3

Answer

Physics, 22.06.2019 07:20

Diamond will scratch quartz. true or false

Answers: 2

Answer

Physics, 22.06.2019 07:40

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

Answers: 3

Answer

You know the right answer?

In a double-slit interference experiment, the slit separation is 2.41 μm, the light wavelength is 51...

Questions