Multiple Choice
Planck's constant is 6.6 * 10-34 J·s and the electron mass is 9.1 * 10-31 kg.The de Broglie wavelength of an electron whose speed is 2.0 * 107 m/s is
A) 2.8 * 10-10 m.
B) 3.6 * 10-10 m.
C) 3.6 * 10-11 m.
D) 2.8 * 1010 m.
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q1: The speed of a photon<br>A) is less
Q2: The photoelectric effect occurs only when the
Q5: A moving body is described by its
Q7: Which of the following electron jumps in
Q9: If Planck's constant were larger than it
Q10: Planck's constant is h = 6.6 *
Q17: Photons have<br>A)no charge.<br>B)charges smaller than
Q20: Electrons<br>A) have no magnetic properties.<br>B) have the
Q24: The light waves from a laser<br>A) have
Q38: A photon is emitted by an atom