What is the role of prisms and gratings in spectrographs?
What will be an ideal response?
Prisms and gratings are used in spectrographs to spread out light depending on the wavelength to form the spectrum.
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Where would you be if the Sun sets for six continuous months, beginning on September 23rd?
A) North Pole B) Arctic Circle C) Equator D) Antarctic Circle E) South Pole
Three boxes rest side-by-side on a smooth, horizontal floor. Their masses are 5.0 kg, 3.0 kg, and 2.0 kg, with the 3.0-kg mass in the center. A force of 50 N pushes on the 5.0-kg mass, which pushes against the other two masses
What is the contact force between the 5.0-kg mass and the 3.0-kg mass? A) 0 N B) 10 N C) 25 N D) 40 N E) 50 N
According to the theory of general relativity, gravity is caused by the ____
a. linear motion of stars b. change in mass of a moving body c. curvature of space-time d. constant speed of light e. inertia of a moving body
A quanton is moving in a classically allowed region. If the quanton would classically have at point xA twice the kinetic energy it would have at point 
, how would the wavelengths of an energy eigen function of the quanton compare at these points?
A. ?A = 2?B
B. ?A = 
?B
C. ?B = ?A
D. ?B = 2?A
E. ?B = 4?A