According to Rayleigh, what condition must be met in order for two images to be resolved?
1.The images must be far apart.
2.The device being used to view them must be in focus.
3.The central maximum of one image must fall within the first minimum of the other image, or further out.
4.The sources must be a distance apart from each other related to the wavelength.
3
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Two atoms have the same number of neutrons but different numbers of protons. These two atoms
A. have the same atomic mass. B. will exhibit different chemical properties. C. have the same number of electrons. D. are isotopes of each other.
A square plate has an area of 29.00 cm2 at 20.0°C. It will be used in a low temperature experiment at T = 10.0K where it must have an area of 28.00 cm2. What area must be removed from the plate at 20.0°C for it to have the correct area at 10.0 K? (The coefficient of linear expansion is 10 × 10?6 (°C)?1.)
A. 0.079 3 cm2 B. 0.159 cm2 C. 0.238 cm2 D. 0.836 cm2 E. 0.921 cm2
Why is the number of galaxies in the Local Group uncertain?
What will be an ideal response?
A series LC circuit contains a 100-mH inductor, a 36.0-mF capacitor and a 12-V battery. The angular frequency of the electromagnetic oscillations in the circuit is
a. 36.0 × 10^?4 rad/s. b. 6.00 × 10^?2 rad/s. c. 2.78 rad/s. d. 16.7 rad/s. e. 277 rad/s.