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NIKITA PUBLICATION-ATOMS, MOLECULES AND NUCLEI-MCQs
- During X-ray formation, if voltage is increased
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- X-rays are produced
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- What happens when fast moving electrons are stopped and fall on the me...
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- Which of the following types of electromagnetic waves have the longest...
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- Intensity of X-rays depends upon the number of
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- To produce hard X-rays in Coolidge tube, we should increase
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- In an X-ray tube, the intensity of the emitted X-ray beam is increased...
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- The wavelength of the characteristic X - ray k(alpha ) line emitted by...
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- An X-ray tube operated at 30 kV emits a continuous X-ray of short wave...
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- The wavelength of K(alpha) X-rays produced by an X-ray tube is 1.785 Å...
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- Which of the following is accompanied by the characteristic X - ray em...
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- For continuous X-rays produced wavelength is
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- The speed of the electron in the second orbit in a H-atom is
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- The velocity of the electron in the first Bohr's orbit is 2.181xx10^(6...
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- The angular momentum of the electron in the third orbit of H atom is
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- The angular speed of the electron in the first orbit in a hydrogen ato...
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- The angular speed of the electron in the first orbit in a H atom is 4....
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- The radius of the first Bohr orbit of the hydrogen atom is 0.53 Å and ...
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- The radius of first Bohr orbit in H-atom is 0.53 Å. The radius of thir...
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- The energy of the electron in the third orbit of H-atom is -1.51 eV. T...
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