MCQ
Who discovered the first spectral series?
- ALyman
- BBalmer
- CPaschen
- DPfund
Explanation:
Balmer discovered the first spectral series.
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The time period of a thin bar magnet in earth’s magnetic field is T. If the magnet is cut into two equal parts perpendicular to its length, the time period of each part in the same field will be
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(a) |
(b) T |
(c) |
(d) 2T |
The graph that correctly represents the relation of frequency n of a particular characteristic X-ray with the atomic number Z of the material is
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(a)
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(b)
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(c)
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(d)
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