How much energy is carried by a photon of light having frequency 110 GHz? (h = 6.626 × 10-34 J ? s)
A) 1.1 × 10-20 J
B) 1.4 × 10-22 J
C) 7.3 × 10-23 J
D) 1.3 × 10-25 J
C
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Gauss's Law: Gaussian surfaces A and B enclose the same positive charge +Q. The area of Gaussian surface A is three times larger than that of Gaussian surface B. The electric flux through Gaussian surface A is
A. nine times larger than the flux of electric field through Gaussian surface B. B. three times larger than the flux of electric field through Gaussian surface B. C. equal to the flux of electric field through Gaussian surface B. D. three times smaller than the flux of electric field through Gaussian surface B. E. unrelated to the flux of electric field through Gaussian surface B.
It is diffraction that limits the ________ of a telescope of a given objective diameter
A) magnification B) light grasp C) interference D) aperture E) resolution
A 0.75-?F capacitor is connected to a 400-V battery. Find the charge on the capacitor
a. 4.0E–2 C b. 3.0E–4 C c. 1.9E–3 C d. 5.3E–8 C e. 5.3E+4 C
The variables length l, gravity g, velocity V, and density ? can be combined into the dimensionless term:
