14) he que Name MULTIPLE CHOICE. Choose the one alternative that best completes

Question

14) he que Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the questio 1) Light passing through a transparent medium has a wavelength of 466 nm and a frequency of 6.20 x 1014 s- 1. What is the speed of the light in the medium? A) 1.33 x 1012 m/s B) 1.33 x 1021 m/s C) 2.89 x 108 m/s D) 7.52 x 10- 22 m/s E) 2.89 x 1017 m/s 2) The Bohr theory explains that an emission spectral line is: A) due to an interaction between electrons in atoms to an electroniosing energy butkeeping the same values ofits four quantum numbers due to an electron gaining energy and changing orbitals E) none of these 3) Which of the following statements about orbital shapes is NOT true? A) 2p orbitals have a node at r 0. C A ls orbital is spherical. There are only two 2p orbitals, each directed alongx- or y-axis. E) There are 53d orbitals. 4) What is an acceptable value for the missing quantum number? 0, ms A) 1 B) 0 C) 3/2 D) 1/2 E) 2

Explanation / Answer

1)

speed = f * wavelength

= 6.20*10^14 s-1 * 466*10^-9 m

= 2.89*10^8 m/s

Answer: C

I am allowed to answer only 1 question at a time

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