If a hydrogen atom originally in a state with principal quantum number n is excited to state n' = 2n, then
A) its radius and binding energy will quadruple.
B) its radius and binding energy will double.
C) its radius will double and the binding energy will quadruple.
D) its radius will quadruple and the binding energy will double.
E) its radius will quadruple and the binding energy will be reduced by a factor of four.
E
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A. 194 m/s B. 578 m/s C. 1220 m/s D. 1880 m/s E. 222 m/s
In general, Population I stars are ________ and Population II stars are ________.
A. red; blue B. dwarfs; massive C. blue; red D. massive; dwarfs
If a conductor is placed in an electric field under electrostatic conditions, the electric field is excluded from the inside of the conductor
Indicate whether the statement is true or false
The peak strength in a precipitation-hardened alloy occurs when
(a) The alloy is quenched. (b) The precipitate is coherent. (c) The precipitate changes from coherent to incoherent. (d) The precipitate is incoherent.