Describe diamagnetism
What will be an ideal response?
Diamagnetism is the effect of the production by a material of a magnetic field in the opposite direction to an external magnetic field that is applied to it. All materials show at least a small diamagnetic effect.
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Roughly how many stars are within 4 parsecs of the solar system?
A) 3 B) 30 C) 3000 D) 300,000 E) 200 billion
Glass is transparent to light of frequencies that
A) match its natural frequencies. B) are below its natural frequencies. C) both of these D) none of the above
Socrates died from ingesting the alkaloid named
a. nicotine. b. caffeine. c. quinine. d. coniine.
A magnifying glass of focal length 150. mm is used to examine an old manuscript
(a) What is the maximum magnification given by the lens? (b) What is the magnification for relaxed eye-viewing (image at infinity)?