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11. During Einstein's Photoelectric Experiment, what changes are observed when the frequency of the incide radiation is increased? A. The value of saturation current increases C. The value of stopping potential decreases D. No effect B. The value of stopping potential increases 12. A radioactive source has a half-life of 80 s. How long will it take for 7/8 of the source to decay? А. 10 s В. 70 s С. 240 s D. 640 s 13. Who is responsible for the model of the atom where electrons travel in specific paths or orbits around ti nucleus? A. Einstein В. Bohr C. Planck D. Dalton

11. During Einstein's Photoelectric Experiment, what changes are observed when the frequency of the incide radiation is increased? A. The value of saturation current increases C. The value of stopping potential decreases D. No effect B. The value of stopping potential increases 12. A radioactive source has a half-life of 80 s. How long will it take for 7/8 of the source to decay? А. 10 s В. 70 s С. 240 s D. 640 s 13. Who is responsible for the model of the atom where electrons travel in specific paths or orbits around ti nucleus? A. Einstein В. Bohr C. Planck D. Dalton

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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11-15 MULTIPLE CHOICE PHYSICS

B. sound and magnetic waves C. electric and wave component D. sound and electric component 11. During Einstein's Photoelectric Experiment, what changes are observed when the frequency of the incident radiation is increased? A. The value of saturation current increases B. The value of stopping potential increases C. The value of stopping potential decreases D. No effect 12. A radioactive source has a half-life of 80 s. How long will it take for 7/8 of the source to decay? B. 70 s C. 240 s D. 640 s A. 10 s 13. Who is responsible for the model of the atom where electrons travel in specific paths or orbits around the nucleus? A. Einstein B. Bohr C. Planck D. Dalton 14. What is the percentage of a 200g sample of Nitrogen-16 that decays to 12.5g in 21.6 s? B. 6.25% C. 25% A. 12.5% 15. Thallium-208 has a half-life of 3.053 min. How long does it take for 120g to decay to 7.50? B. 6.106 min C. 48.84 min D. 12.21 min A. 21.12 min Directions: So the following problems and show your solution in the box below ONLY. Put a small box to your final answer. Utilize the space and make sure your final answers INCLUDE UNITS! Strictly NO II- Solving and make sure your answers INCLUDE UNITS! Strictly NO indicate ERASURES. unor 1. A coil of wire is situated in a 0.45 T uniform magnetic field. The area of the coil is 4.0 m?. What is the magnetic flux if the angle between the magnetic field and the normal to the surface of the coil is 45° considering 100 turns? After 5 seconds, the magnetic field is now parallel to the normal to the surface. What is the induced emf? Two polaroid A and B are kept with their transmission axes at an angle 0 with respect to one another. If the transmitted intensity of light It=0.75 Io where Io is the intensity of light incident on the system then find 0. 2.
Transcribed Image Text:B. sound and magnetic waves C. electric and wave component D. sound and electric component 11. During Einstein's Photoelectric Experiment, what changes are observed when the frequency of the incident radiation is increased? A. The value of saturation current increases B. The value of stopping potential increases C. The value of stopping potential decreases D. No effect 12. A radioactive source has a half-life of 80 s. How long will it take for 7/8 of the source to decay? B. 70 s C. 240 s D. 640 s A. 10 s 13. Who is responsible for the model of the atom where electrons travel in specific paths or orbits around the nucleus? A. Einstein B. Bohr C. Planck D. Dalton 14. What is the percentage of a 200g sample of Nitrogen-16 that decays to 12.5g in 21.6 s? B. 6.25% C. 25% A. 12.5% 15. Thallium-208 has a half-life of 3.053 min. How long does it take for 120g to decay to 7.50? B. 6.106 min C. 48.84 min D. 12.21 min A. 21.12 min Directions: So the following problems and show your solution in the box below ONLY. Put a small box to your final answer. Utilize the space and make sure your final answers INCLUDE UNITS! Strictly NO II- Solving and make sure your answers INCLUDE UNITS! Strictly NO indicate ERASURES. unor 1. A coil of wire is situated in a 0.45 T uniform magnetic field. The area of the coil is 4.0 m?. What is the magnetic flux if the angle between the magnetic field and the normal to the surface of the coil is 45° considering 100 turns? After 5 seconds, the magnetic field is now parallel to the normal to the surface. What is the induced emf? Two polaroid A and B are kept with their transmission axes at an angle 0 with respect to one another. If the transmitted intensity of light It=0.75 Io where Io is the intensity of light incident on the system then find 0. 2.
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