Multiple Choice
The Lyman-alpha spectral line of hydrogen has a wavelength of 121.6 nm. In which wavelength band does this line occur?
A) ultraviolet
B) visible light
C) Infrared
D) X-ray
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q182: Telescopes are placed in space to view
Q183: A Newtonian reflecting telescope is constructed using
Q184: One nanometer (nm) is<br>A) 10<sup>-12</sup> m.<br>B) 10<sup>-6</sup>
Q185: For many years, the Palomar telescope (5-m
Q186: If one sends white light through a
Q188: Before 1998, what results were obtained in
Q189: An electromagnetic wave has a wavelength of
Q190: How does the angular resolution (sharpness) of
Q191: Images from the 5-meter telescope at Mount
Q192: The main reason that the angular resolution