A toy capable of absorbing green light is illuminated with yellow light. What would be m color? A. blue B. green C. red D. yellow
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A toy capable of absorbing green light is illuminated with yellow light. What would be m
color?
A. blue
B. green
C. red
D. yellow
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Solved in 3 steps
- 19. A laser uniformly illuminates an area with green light that has an average intensity of 550 W/m2. What is the rms value of the electric field of this light? A) 322 N/C B) 405 N/C C) 455 N/C D) 643 N/C E) 891 N/C Ans: C). Raman scattering takes into account a. The energy transitions between orbitals b. The energy transition from molecules in rotation motion c. The energy transition from molecules in translational motion d. Energy is absorbed in the substance being probed1 8 .) see photo for details
- 2. With the help of Maxwell’s equations, explain the process of wave generation. What is Poynting vector? Explain each part of mathematical equation of the Poynting theorem for EM waves. .6QUESTION 8 The colour of the sky is due to O A. Polarization O B. Scattering O C. Diffraction O D. Reflection O E. Refraction
- The color of an opaque object is the color of the light it ________________. a. absorbs b. reflects c. scatters d. transmitsWhich of the following cannot be polarized? A. infrared B. sound C. x-ray D. microwave E. radioIf the magazine is 2m from the 100 lumen source, what is the intensity of the light failing on the magazine? A. 50 lux B. 200 lux C. 25 lux D. 100 lux
- How would you produce coherent light from an ordinary incandescent light bulb? A. By using a spectral filter, telescope and spectral (color) filter respectively. B. C. D. By using a spectral (color) filter, spectral filter and a telescope respectively. By using a spectral filter, a pinhole and a spectral (color) filter respectively. By using a spatial filter, a pinhole and a spectral (color) filter respectively.2. An LHC-polarized wave with a modulus of 2 (V/m) is traveling in free space in the positive +y- direction. Write the expression for the wave's electric field vector given that the wavelength is 1 cm.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