In a particular case of Compton scattering, a photon collides with a free electron and scatters backwards. The wavelength after the collision is exactly double the wavelength before the collision
What is the wavelength of the incident photon? (mel = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s, c = 3.00 × 108 m/s)
A) 6.0 pm B) 2.4 pm C) 4.8 pm D) 3.6 pm E) 1.2 pm
C
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A given net force propels an object along a straight-line path. If the net force were doubled, its acceleration would
A) quadruple. B) double. C) stay the same. D) be half. E) none of the above
The orbital period of a geosynchronous satellite is
A) 23 hours 56 minutes. B) 24 hours. C) 365.25 days. D) 12 years. E) 26,000 years.
Changing minds: From the time the idea of dark matter was first proposed in the 1930s, it took nearly 50 years for astronomers to universally accept the existence of dark matter. Discuss the process by which that acceptance came about
What evidence was collected, and how was it checked?
Monochromatic light of wavelength 500 nm is incident normally on a diffraction grating. If the third-order maximum of the diffraction pattern is observed at 32° from the centerline, what is the distance between the slits of the grating?
A) 0.93 ?m B) 1.4 ?m C) 2.8 ?m D) 8.5 ?m