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Atomic spectrum- Hydroge..



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Q1. Spectroscopy deals with the transition that a molecule undergoes on the absorption of suitable radiations determined by quantum mechanical selection rules.

(a) True
(b) False
(c)
(d)

Q2. The necessary condition for absorption spectrum is that __________

(a) h? should be greater than the energy difference
(b) h? should be smaller than the energy difference
(c) h? should be equal to the energy difference
(d) none of the mentioned

Q3. Select the correct statement from the following options.

(a) Molecular spectra arises from the transition of an electron between the molecular energy levels
(b) In molecular transitions, electronic, rotational and vibration transitions occurs
(c) Molecular spectra is more complicated than atomic spectra
(d) All of the mentioned

Q4. In atomic spectroscopy, only electronic transitions are involved.

(a) True
(b) False
(c)
(d)

Q5. The spectra can be broadly classified into two categories. They are __________

(a) Atomic and molecular spectra
(b) Atomic and electronic spectra
(c) Molecular and electronic spectra
(d) None of the mentioned

Q6. Select the incorrect statement from the following option.

(a) Emission spectrum results when an electron in an atom undergoes a transition from excited state to the ground state
(b) In the emission spectrum, transition takes place with the emission of a photon of energy h?
(c) In the emission spectrum, transition takes place with the absorption of a photon of energy h?
(d) All of the mentioned

Q7. The energy of a photon is given by __________

(a) h/?
(b) ?/h
(c) 1/h?
(d) h?

Q8. Absorption spectrum results when an electron in an atom undergoes a transition from __________

(a) Higher energy level to a lower one
(b) Lower energy level to a higher one
(c) Intermediate levels
(d) All of the mentioned

Q9. The energy level with lower energy is called __________

(a) Ground state energy level
(b) Initial state energy level
(c) Excited state energy level
(d) All of the mentioned

Q10. The analysis of electromagnetic radiation scattered, absorbed or emitted by the molecule is called __________

(a) Kaleidoscopy
(b) Astronomy
(c) Spectroscopy
(d) Anatomy


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428 views

Assertion : Cathode Rays Do Not Travel In Straight Lines. Reason : Cathode Rays Penetrate Through Thick Sheets.

Modified 248 Year Ago

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428
248 Year Ago

Assertion : Cathode Rays Do Not Travel In Straight Lines. Reason : Cathode Rays Penetrate Through Thick Sheets.

0 votes
0 Answer
418 views

E/m Ratio Was Determined By

Modified 248 Year Ago

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248 Year Ago

E/m Ratio Was Determined By

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0 Answer
403 views

Magnitude Of K.E. In An Orbit Is Caused By

Modified 248 Year Ago

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248 Year Ago

Magnitude Of K.E. In An Orbit Is Caused By

0 votes
0 Answer
344 views

The Minimum Real Charge On Any Particle Which Can Exist Is

Modified 248 Year Ago

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248 Year Ago

The Minimum Real Charge On Any Particle Which Can Exist Is

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0 Answer
342 views

Assertion : Cathode Rays Are A Stream Of α -particles. Reason : They Are Generated Under High Pressure And High Voltage.

Modified 248 Year Ago

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248 Year Ago

Assertion : Cathode Rays Are A Stream Of α -particles. Reason : They Are Generated Under High Pressure And High Voltage.

0 votes
0 Answer
324 views

The Average Distance Of An Electron In An Atom From Its Nucleus Is Of The Order Of

Modified 248 Year Ago

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248 Year Ago

The Average Distance Of An Electron In An Atom From Its Nucleus Is Of The Order Of

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