If the wavelength or red light in air is 690nm and remembering frequency does not change from medium to medium, what is the wavelength of the red light in the n=1.6 medium? (quantitative- show your work)
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can you explain number 14 thank you
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- Interpreting V 1. Which colors in the visible spectrum have the least energy? the most energ 2. Describe how the spectral lines create from the visible light of a star are as unique as a fingerprint. 3. Explain how the reflection of a beam light changes when the angle change 4. How is refraction used in telesspes 5. Why are concave mirrors rather tha convex mirrors used in reflecting telescopes?Assessment 2 Directions: Write ULTRA if the statement is correct, and VIOLET if not. If the statement is incorrect, state reason or appropriately correct the statement. 1. Too much exposure to UV rays may increase the risk for skin cancer and cataracts. 2. Sunscreens protect our skin so we can stay under the sun all day. 3. The higher the Sun Protection Factor (SPF) in a sunscreen, the higher the protection. 4. Sunglasses have UV coating that help block harmful rays from the sun. 5. It is good to avoid the sun entirely.List down applications of wave-based light. What does a scattering of light mean? Search about the Tyndall effect. Explain its importance.
- 1. What are the function of each component in Figure 3?2. What is the differences of Phosporescence and Flourosecence?3. Why the profile of emission spectra look like the reflection profile of absorption spectrum? How to answer above questions based on picture drawing!Transmission (%) 100 B 21 150 200 250 500 1000 B. Infrared light C. Yellow light D. Blue light 1500 2000 Wavelength (nm) 2500 3000 3500 Based on the transmission plot shown here, what kind of light do you think is least likely to be transmitted? (Make sure you can see the values of the wavelength along the horizontal axis. Enlarge the image or screen if you need to.) A. Red lightPlease help me with the questions below 1. In a piece of glass does the index of refraction depend on the wavelength of the incoming light? Yes or No 2. Using the lock in the phot which it’s supposed to be a gif of a wave length. What direction is the wave travelling?
- Create a transcript for a video that uses Physics to answer ONE of the following questions in less than 3 minutes. The transcript should be able to be used for a 2-3 minute long video. Why is the sky blue? Why do we see a rainbow when the sun shines after rain? Why does a spoon seem to bend in a clear glass of water? Why are there rainbows in oil spots on the driveway? How can light help us measure small distances, such as the thickness of a single piece of hair? How do anti-glare coatings on eyeglasses work?Calculate the frequency of yellow light with a wavelength of 580 x 10-9 m. pls make your answer clear and understandable, and avoid long explanation. + strictly no plagiarism. Thank you!Express your understanding of filters by answering the following questions. Choose the best answer(s) from the Color Table. a. A red filter is capable of transmitting ____ light (if it is incident upon the filter). b. A blue filter is capable of transmitting ____ light (if it is incident upon the filter). c. A green filter is capable of transmitting ____ light (if it is incident upon the filter). d. A red filter will absorb ____ light (if it is incident upon the filter). e. A blue filter will absorb ____ light (if it is incident upon the filter). f. A yellow filter will absorb ____ light (if it is incident upon the filter). g. A magenta filter will absorb ____ light (if it is incident upon the filter). h. A white object is illuminated with white light and viewed through a green filter. The object will appear _____. i. A white object is illuminated with white light and viewed through a blue filter. The object will appear _____. j. A white object is illuminated with white light and…
- Use the passage to answer the question. Polarization gives us evidence that light is sometimes best studied using a wave model of radiation. When light is passed through two polarizing filters placed at 90 degrees to each other, it is completely blocked. Interference is common with different types of waves, but not with particles, implying that light is acting like a wave in this experiment. Which of the three sentences provides the reasoning in the passage? In 1-2 sentences, explain how you know.Activity 6 Directions: Solve for the given problems. Show your complete solutions. Express your final answers into 3 significant figures. Write your answers on another sheet of paper. 1. The refractive index for a diamond for red light is 2.41 while that for blue light is 2.45. Their wavelengths are 650 nm and 430 nm, respectively. If whitelight enters the diamond at 25°, what are the angles of refraction of these colors? 2. The refractive index of crown glass for red light is 1.51 and 1.53 for violet light. Find the speed of red light and speed of violet light in crown glass. 3. If a light ray in fabulite enters air, find the largest angle of incidence that the ray can form with the normal for it not to be reflected back into the fabulite. (nabulite = 2.41)2. What is the role of Nitrogen gas in polarography ? 3. Draw and label a ideal polarogram. 4. Write a note on DME with suitable diagram. 5. Discuss the Qualitative application of polarography. 6. Draw a schematic diagram of Dropping Mercury Electrode. Give advantages and disadvantages of DME. 7. Sketch ideal polarographic wave. Explain the term residual current and limiting current. 8. What is residual current ? 9. Define the term migration current in polarography. 10. Give the principle of polarography and explain the role of supporting electrolyte in polarography. 11. What is supporting electrolyte in polarography ? 12. Explain contruction and working of DME. 13. How the effect of migration current eliminated. 14. Define the term maximum supressor. 15. Sketch a neat labeled diagram of an ideal polarographic curve and explain Residual current ,Condenser current, Faradic current and Migration current. 16. Calculate the diffusion current flowing through the cell containing the solution…