{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# Quiz3A - Physics 1C Spring 2010 Quiz3A Name h= 6.6x10-34 Js...

This preview shows pages 1–2. Sign up to view the full content.

Physics 1C Spring 2010 Quiz3A Name___________________________________ h = 6.6x10 - 34 Js, m e = 9.1x10 - 31 kg, e = 1.6x10 - 19 C, c = 3.00x10 8 m/s, eV = 1.6x10 - 19 J, Rhydberg constant = 1.097x10 7 m - 1 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) In an x - ray source, electrons accelerated through a potential of 3000 V are incident on a metal surface. The shortest wavelength x - ray emitted by the source has a wavelength of ________. A) 0.93 nm B) 0.075 nm C) 0.41 nm D) 0.62 nm 1) 2) A laser light beam with an wavelength of 450 nm is used to kill a mosquito. If the energy needed to do this is 0.20 J how many photons are necessary. A) 3x10 15 B) 5x10 17 C) 2x10 10 D) 8x10 20 2) 3) You are designing a semiconductor diode laser with a short wavelength to read more information from a dvd. To do this you need a semiconductor with _________, 3)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}