Exclusion Principle: According to the quantum mechanical model of the hydrogen atom, if the principal quantum number is n, how many different orbital angular momentum quantum numbers are permitted?
A. n/2
B. n
C. 2n
D. 3n
E. 4n
Answer: B
Physics & Space Science
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When light in material 1, which is in contact with material 2, undergoes total internal reflection, what condition is necessary for their indices of refraction?
A. n1 = 2 n2 B. n1 > n2 C. n1 < n2 D. n1 = n2+ 1 E. n2 = 1.5
Physics & Space Science
What measurements are needed to determine the orbital motion of a spectroscopic binary star?
What will be an ideal response?
Physics & Space Science
Which of the following stars is the coolest?
A) B7 B) G9 C) K7 D) K4
Physics & Space Science
Which of the following statements about our Sun is not true?
A) The Sun contains more than 99% of all the mass in our solar system. B) The Sun is a star. C) The Sun's diameter is about 5 times that of Earth. D) The Sun is made mostly of hydrogen and helium.
Physics & Space Science