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The number of waves contained in a unit ...

The number of waves contained in a unit length of the medium is called .....

A

elastic wave

B

wave number

C

wave pulse

D

electromagnetic wave

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The correct Answer is:
B
The number of waves contained in a unit length of the medium is called a wave number
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FULL MARKS-ATOMIC AND NUCLEAR PHYSICS-Additional question (Multiple Choice Question)
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  3. The K(infty) X-ray emission line of tungsten occurs at lambda = 0.021 ...

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  4. The radius of an electron orbit in a hydrogen atom is of the order of

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  5. Which of the following atoms has the lowest ionisation potential?

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  6. The transition from the state n = 4 to n = 1 in a hydrogen like atom r...

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  7. The number of waves contained in a unit length of the medium is called...

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  8. When hydrogen atom is in its first excited level, its radius is of th...

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  9. The ground state of energy of hydrogen atom is -13.6 eV.What is the po...

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  10. For ionising an excited hydrogen atom, the energy required (in eV) wil...

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  11. What is the energy of He^(+) electron in first order?

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  12. If voltage across on X-ray tube is doubled, then energy of X-ray emitt...

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  13. When hydrogen atom is in its first excited level, its radius is of th...

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  14. The ionisation energy of hydrogen atom is 13.6 eV, the ionisation ener...

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  15. When an electron makes transition from n = 4 to n = 2, then emitted l...

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  16. Maximum frequency of emission is obtained for the transition

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  17. Hydrogen atoms are excited from ground state to the state of priciple ...

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  18. The radius of hydrogen atom, in the ground state is of the order of

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  19. According to Bohr's theory of the hydrogen atom, the speed v(n) of the...

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  20. Out of the following which one is not a possible energy for a photon t...

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