A newly formed protostar will radiate primarily at which wavelength?
A) visible light
B) X-ray
C) infrared
D) ultraviolet
E) radio
C
Physics & Space Science
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In the _________technique the specimen is in a fixed position relative the x-ray beam and diffraction of continuous radiation occurs when Bragg’s law is satisfied.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
Two carbon cylinders have radii r and 2r and they both have length L. What is the resistance of the first if the resistance of the second is 12
?
A. 48 
B. 12
C. 24
D. 3
E. 6
Physics & Space Science
Which is the most distant active galaxy?
a. Seyfert galaxies b. Radio galaxies c. Quasars d. BL Lac objects
Physics & Space Science
What does the extinction coefficient describe?
What will be an ideal response?
Physics & Space Science