Spectral Series: What is the longest wavelength in the Lyman Series?

A. 45.60 nm
B. 91.20 nm
C. 121.5 nm
D. 240.1 nm
E. 365 nm


Answer: C

Physics & Space Science

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For a periodic process, the number of cycles per unit time is called the

A) amplitude. B) wavelength. C) frequency. D) period. E) pulse.

Physics & Space Science

Which of the following methods used to determine the mass of a cluster of galaxies does not depend on Newton's law of gravity?

A) measuring the orbital velocities of galaxies in the cluster B) measuring the temperature of x-ray gas in the intracluster medium C) measuring the amount of distortion caused by gravitational lensing

Physics & Space Science

The type of radio wave that produces the least static in a radio receiver is

A) AM. B) FM. C) neither of these

Physics & Space Science

What is the potential difference VB ? VA when I = 0.50 A in the circuit segment shown below?



a.
+28 V

b.
+2.0 V

c.
?28 V

d.
?2.0 V

e.
+18 V

Physics & Space Science