Two light beams of different frequency and same intensity fall on a black and white surfaces
33. Two light beams of different frequency and same intensity fall on a black and white surfaces, striking perpendicular to the surface. Which of the following statements is/are true?
a. the white surface experiences twice the change in momentum of the black surface.
b. The light beams exert no pressure on any of the surfaces because light is just energy.
c. Both beams exert the same pressure on the surfaces.
d. The high-frequency beam exerts more pressure on the surfaces.
34. Which of the following statements is/are true about the energy density of electromagnetic waves? a. The energy is equally divided between the electric and the magnetic field.
b. 1/4 of the energy is in the electric field and are 3/4 in the magnetic field.
c. Doubling the amplitude of the electric field quadruples the energy carried by the waves.
d. Doubling the amplitude of the magnetic field doubles the energy carried by the waves.
35. Which of the following combinations of units could be used to measure the intensity of light?
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Two light beams of different frequency and same intensity fall on a black and white surfaces
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1. Please answer the following questions regarding coherent
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A.
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C.
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A.
B.
C.
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