If h = Planck's constant, the de Broglie wavelength of a particle of linear momentum p and kinetic energy KE is given by which of the following formulas?

A. p/h
B. KE/h
C. h/KE
D. h/p
E. h.p


Answer: D

Physics & Space Science

You might also like to view...

Shell Radius: Calculate the orbital Bohr radius of the n = 2 excited state in a hydrogen atom. (r1 = 0.0529 nm)

A. 0.212 nm B. 0.106 nm C. 0.169 nm D. 0.243 nm

Physics & Space Science

What other population of stars are relatively old?

A.) Open clusters. B.) OB associations. C.) Globular clusters. D.) Blue clusters. E.) Superclusters.

Physics & Space Science

What is the magnetic force on a 2.0-m length of (straight) wire carrying a current of 30 A in a region where a uniform magnetic field has a magnitude of 55 mT and is directed at an angle of 20° away from the wire?

A. 1.5 N B. 1.3 N C. 1.1 N D. 1.7 N E. 3.1 N

Physics & Space Science

Suppose the half-life of an isotope is 2 days. You purchase 10 grams of the isotope, but it was produced in a laboratory 4 days before it was delivered to you

How much of this isotope will you have 3 days after it was delivered to you? A) more than 2.5 grams but less than 5 grams B) 2.5 grams C) 1.25 grams D) more than 1.25 grams but less than 2.5 grams E) less than 1.25 grams

Physics & Space Science