The type of EM radiation emitted when high speed electrons decelerate as they are smashed into a metal target is

a. ultraviolet
b. infrared
c. x ray
d. microwave
e. gamma ray


D

Physics & Space Science

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Compound Microscope: You are given two converging lenses to build a compound microscope. Lens A has focal length 0.50 cm and lens B has focal length of 3.0 cm. Which one of the two lenses would you use for the objective?

A. Lens A, because it has the shorter focal length. B. Lens B, because it has the longer focal length. C. It makes no difference which lens I use for the objective. D. None, because the objective should be a diverging lens.

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A fish normally displaces its own

A) volume of water. B) weight of water. C) both of these D) neither of these

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In Hubble's Tuning Fork, mergers drive the arrow of time to the ________

Fill in the blank(s) with correct word

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Steven Weinberg, Abdus Salam, and Sheldon Glashow shared the 1979 Nobel prize in physics for their development of a(n)

a. electroweak theory b. GUT c. quark theory d. generalized theory of relativity e. theory of strangeness

Physics & Space Science