Lab 9 Retake

I Review I Constants I Periodic Table X rays with a wavelength of 0.19 nm undergo first- order diffraction from a crystal at a 57 ° angle of incidence. Part A At what angle does first-order diffraction occur for x rays with a wavelen of 0.12 nm ? Express your answer using two significant figures. ΑΣφ ? = Submit Request Answer

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QUESTION 4 How would you produce coherent light from an ordinary incandescent light bulb? O A. By using a spectral filter, a pinhole and a spectral (color) filter respectively. O B. By using a spectral (color) filter, spectral filter and a telescope respectively. O c. By using a spectral filter, telescope and spectral (color) filter respectively. O D. By using a spatial filter, a pinhole and a spectral (color) filter respectively.

A laser light which is monochromatic purse from a dancer medium to a rare medium as a result

PLEASE ANSWER Q.22

You replicate Young's experiment using a helium-neon laser. a) Describe the setup for this experiment  in a drawing b) Describe the possible interference pattern you see on your screen

Monica was using different colored pieces of clear plastic for an art project Her little brother came and scattered the plastic all over the photograph of Name Name Class Date Name 20 the the image she was using as a guide. As she was cleaning up, she noticed that the image appeared differently behind certain colors of plastic. Why was this  A. Certain colors of light pass through, leaving everything else blank or invisible. B. Only the color matching the plastic can pass through, leaving everything else shades of black. C. Only the color matching the plastic can pass through, leaving everything else blank or invisible. D. All colors except the one that matches the plastic can pass through, leavng. that color black

10. To produce coherent light from an ordinary incandescent light bulb you need A. Wavelength filter, third filter and spatial filter B. Wavelength filter, Candle and spatial filter C. Wavelength filter, Incandescent light bulb and laser D. Wavelength filter, Incandescent light bulb and spatial filter

Question 1: X-ray Diffraction x-ray diffraction is a method used to identify different types of materials. While this is usually quite a complex process, however for a simple cubic structure, as seen below, we can find the distance between neighboring atoms. The below image shows the diffraction of x-rays passing through a cubic structure and illustrates a change in distance of 2d sine Light rays in phase ● a /I\ 100 20. b d sin 8 2d sin 0 Atoms in crystal If the wavelength of the x-ray is equal to an integer multiple of this change in distance, we will get constructive interference: mλ = 2d sine X-rays of wavelength 0.103 nm reflects off a crystal and a second-order maximum is recorded at a Bragg angle of 25.5°. (a) What is the spacing between the scattering planes in this crystal? (b) At what angle will the third-order maximum occur?

1) When light is travelling, as in the diffraction example above, it is mostly useful to describe it as a wave. Like water waves or sound waves, different “rays” of light will interact with each other depending on their path length and phase. We call this process:    a. constructive and destructive interference.   b. reflection.     c. black-body radiation.   e. absorption.  f.  diffusion.    2. The black-body emission of an object tells us its:    a. electric charge.  b. single wavelength emitted.  c. temperature. d. quantum state.  e. element composition 3. Spectroscopy is interested in emission and absorption lines, because ...    a. they sound really pretty. b.they are only emitted by intelligent life. c. electric currents always emit certain sound waves. d. they are pretty.  e. they correspond to specific electron transitions characteristic to certain elements (and certain ions and molecules).

can you solve step by step

DO- * ON- 07- 01- -- KE C- UN 10 700 Optical spectrum of a LED 52 1530 $45 650 2 STO SIMI 30 170m You have an LED with: C a center wavelength of A: 560 nm a Full Width of Half Maximum (FWHM) of the spectra: A 40 nm ENCH 610 MENNIN 630 This is a sample image. A and FWHM differs from the values in the task. 640 650 What is the approximate coherence length of light? (approximate calculation, rounded to whole number)