Please answer these in full detail, thank you!
MC27: Name:_______________________________________Lab Section _____________
Answer each multiple choice question (part a) and then (part b) explain in words why your answer is correct:
1a) If an electron and a proton travel at the same speed, which has the shorter wavelength?
( ) electron ( ) proton
1b)
2a) The work functions for sodium and cesium are 2.28eV and 2.14eV, respectively. For incident photons of a given frequency, which metal will give a higher maximum kinetic energy for the electrons?
( ) sodium ( ) cesium
2b)
3a) If the wavelength of a photon is halved, by what factor does its energy change?
( ) 4 ( ) 2 ( ) ½ ( ) ¼
3b)
4a) A beam of red light and a beam of violet light each deliver the same power on a surface. For which beam is the number of photons hitting thesurface per second the greatest?
( ) the red beam ( ) the violet beam ( ) the number is the same for both beams
4b)
5a) When the accelerating voltage in an X-ray tube is doubled, the wavelength of the X-rays is
( ) increased to twice the original value ( ) is increased to four times the original value
( ) decreased to one-half the original value ( ) decreased to one-fourth its original value
5b)
Please answer these in full detail, thank you! MC27: Name:_______________________________________Lab Section _____________ Answer each multiple choice...
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8.(9 pts) Consider a metal for which the photoelectric effect is possible with a maximum wavelength in the blue region of the spectrum. Infrared, red, yellow, violet and ultraviolet beams are successively directed at the metal. a. Which, if any, of these "colors" will cause electrons to be ejected from the surface and why? b. Which beam will result in...
I need the answers to these nine questions. They are attached
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Which of the following is the correct statement? ● A photon of yellow light has more energy than a photon of ultraviolet light. O A photon of yellow light has less energy than a photon of ultraviolet light. O A photon of yellow light has less energy than a photon of red light. O A photon of...
TULA. Each multiple-choice question is worth 4 points - you must circle the most correct answer (2 points) and justify your answer (2 points). 1. A fire truck approaches you with its siren on. Which of the following statements is false about the signal you receive from the fire truck? a. The siren sounds louder to you. b. The frequency of the sound increases. C. The wavelength of the sound decreases. d. The speed of the sound increases. Explain your...
Can you answer the multiple choice all 1-7?
The focal length of a converging leas is determined through image formation Assuming an object distance of 105 cm and an image distance of 10 cm. what is the focal length of this lens? 5 A) infinity B) 11 cm C)9.13cm D)0.1095mm A light ray traveling in air is incident on the surface of a glass plate The light ray makes an angle of 32 degree with the normal to the surface,...
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Day Multiple Choice 서· Which of the following was one of the Bohr postulates concerning the model of the atom? (A) Electrons can, under certain Energy in eV 12.1 circumstances, exhibit wave-like B) Electrons can occupy only certain, quantized energy levels in the atom (C) All light is composed of photons.. D) All atoms are mostly empty space E) Electrons and protons are uniformly pdethe atom, like a 5. An atom...
Name: Flame Test Lab Prelab questions: Your instructor may ask you to answer these in your lab notebook in a "prelab" section. online or they may ask you to write your answers in your lab manual and submit them before starting your experiment. Follow your instructor's directions 1. Determine the frequency of photon of light that gives off 2.85 x 10-19 Joules. (Show all your work) so. The color would be orange/ red. 5hv (2.85 x/ 0J) - 16.626810**/s) v...
I need the answers to these seven questions. I have attached
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What happens to the energy of the photon if the frequency of the photon is doubled? O Energy of the photon remains the same. O Energy of the photon is increased two times, Energy of the photon is decreased two times. O Energy of the photon is increased four times Which of the following equations is used to...
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In the reaction, 6CO2 + 6H20 --C6H12O6 + 602, carbon dioxide is being — oxidized Ophosphorylated hydrolyzed reduced condensed Which portion of the photosynthetic apparatus absorbs light? O NADP reductase O photosystem 1 both photosystem I and NADP reductase O photosystem II both photosystem I and photosystem II The image here...
I need the answers to these ten questions. I have attached them
below. Please answer all of them. Thank you so much in advance!
If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length? O The length of the rod will become exactly half of its original value. O The length of the rod remains the same. The length of the rod...
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ct answer to each question. Show Section B: Select the correct answer working if necessary. 40 points. 1. If total liabilities decreased by ¥45,000 and equity in time, then total assets must change by what amount uity increased by $10,000 during a period of at amount and direction during that same period? ¥55,000 increase b. Y35,000 decrease ¥35,000 increase x45,000 decrease d. 2. Equity is decreased by all of the following...