A quantum of electromagnetic radiation is called a(n)

a. photon.
b. electron.
c. positron.
d. proton.


a

Physics & Space Science

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Consider a particle of mass m and rest mass mo. Which of the following is the correct expression for the kinetic energy of such a particle?

A) mo v2/2 B) m v2/2 C) m c2 - mo c2 D) 1/2(m c2 - mo c2) E) mo c2 + mo v2/2

Physics & Space Science

Laser light sent through a double slit produces an interference pattern on a screen 3.00 m from the slits. If the m = 2 maximum occurs at an angle of 10.7°, at what angle does the m = 8 maximum occur?

a. No m = 8 maximum occurs. c. 56.3° b. 48.0° d. Not enough information is given.

Physics & Space Science

What do we see when white light passes through a cool cloud of gas?

A) visible light B) infrared light C) thermal radiation D) an absorption line spectrum E) an emission line spectrum

Physics & Space Science

What is the correct electronic configuration for the ground state sodium atom, which has 11 electrons?

A) 1s12s23p62s2 B) 1s22s22p63s2 C) 1s12s22p6 D) 1s22s13p62s2 E) 1s22s22p63s1

Physics & Space Science