The ratio of the de Broglie wavelength of the electron in the n = 4 orbit in hydrogen to the wavelength in the n = 1 orbit is
A. 1.
B. 2.
C. 4.
D. 16.
E. 0.25.
C. 4.
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Force on a Moving Charge: A charged particle that is moving in a static uniform magnetic field
A. will always experience a magnetic force, regardless of its direction of motion. B. may experience a magnetic force which will cause its speed to change. C. may experience a magnetic force, but its speed will not change. D. may experience a magnetic force, but its direction of motion will not change. E. None of these statements are true.
In the UNS system of material designations, if an alloy designation starts with a “G”, it is a plain-carbon or low-alloy _________.
Fill in the blank(s) with the appropriate word(s).
Refracting and reflecting telescopes form an image that is small, inverted, and difficult to observe directly; therefore, an eyepiece is normally used to magnify the image and make it convenient to view
a. True b. False Indicate whether the statement is true or false
Jupiter's atmosphere is a single huge storm system
Indicate whether the statement is true or false