Of all the forms of electromagnetic radiation, the one with the lowest frequency is:

A) gamma rays.
B) ultraviolet rays.
C) visible light.
D) microwaves.
E) radio waves.


E

Physics & Space Science

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A constant magnetic field is applied perpendicular to the plane of a square, single-turn coil with each side equal to 15 cm. If the area of the coil decreases at a rate of 0.20 m2/s, an emf of 20 mV is induced in that coil

What is the strength of the magnetic field applied to the coil? A) 0.10 T B) 0.20 T C) 0.30 T D) 0.40 T E) 0.50 T

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A layer of ethyl alcohol (n = 1.361) is on top of water (n = 1.333). To the nearest degree, at what angle relative to the normal to the interface of the two liquids is light totally reflected?

a. 78° b. 88° c. 68° d. 49° e. the critical angle is undefined

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When aqueous solutions of Na2CO3 and BaCl2 are mixed, the products are NaCl and ______________

Fill in the blank(s) with correct word

Physics & Space Science

The molten rock material that originates far below

the surface of Earth is called a) magma b) limestone c) feldspar d) tephra

Physics & Space Science