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Physical Chemistry -- Atomic Structure
11.
The ratio of the e/m values of a proton and an α-particle is
- A.2 : 1
- B.1:1
- C.1:2
- D.1:4
- Answer
- Report
Answer : [A]
12.
Which of the following pairs have identical values of e/m?
- A.A proton and a neutron
- B.A proton and deuterium
- C.Deuterium and an α-particle
- D.An electron and γ-rays
- Answer
- Report
Answer : [C]
13.
Which of the following is an arrangement of increasing value of e/m?
- A.n < α < p < e
- B.e < p < α < n
- C.n < p < e < α
- D.p < n < α < e
- Answer
- Report
Answer : [A]
14.
Which particle among the following will have the smallest de Broglie
wavelength, assuming that they have the same velocity?
- A.A positron
- B.A photon
- C.An α-particle
- D.A neutron
- Answer
- Report
Answer : [C]
15.
For an electron, the product vn (velocity x principal quantum number) will be independent of the
- A.principal quantum number
- B.velocity of the electron
- C.energy of the electron
- D.frequency of its revolution
- Answer
- Report
Answer : [A]
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