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Heisenberg?s uncertainty..



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Q1. An electron makes a transition from n = 5 state to n = 2 state in the hydrogen atom. What is the frequency of the emitted photon?

(a) 4.9 X 1014 Hz
(b) 5.9 X 1014 Hz
(c) 6.9 X 1014 Hz
(d) 7.9 X 1014 Hz

Q2. Which of the following can be the quantum numbers for an orbital?

(a) n = 4, l = 4, m = 3
(b) n = 2, l = 3, m = 1
(c) n = 3, l = 2, m = -1
(d) n = 3, l = 0, m = -3

Q3. How many values does the spin quantum number have?

(a) 2
(b) 2l
(c) 2n
(d) 2me

Q4. The total value of the magnetic quantum number are _______________

(a) 2n
(b) 2l
(c) 2n + 1
(d) 2l + 1

Q5. What is the range of Azimuthal Quantum Number, l?

(a) 0 to n
(b) 0 to s
(c) 0 to n-1
(d) 0 to s-1

Q6. Which of the following quantum number gives the shape of atomic orbital of sub-shell?

(a) n
(b) l
(c) m
(d) s

Q7. Which of the following is the correct expression for the orbital angular momentum?

(a) l+1?????
(b) n(l+1)???????
(c) l(l+1)???????
(d) m(l+1)????????

Q8. What is the maximum number of electrons in a shell?

(a) n
(b) 2n
(c) n2
(d) 2n2

Q9. Which quantum numbers gives the shell to which the electron belongs?

(a) n
(b) l
(c) m
(d) s

Q10. Quantum Numbers are solutions of _____________

(a) Heisenberg?s Uncertainty Principle
(b) Einstein?s mass energy relation
(c) Schrodinger?s Wave Equation
(d) Hamiltonian Operator


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

Modified 241 Year Ago

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241 Year Ago

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

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0 Answer
415 views

E/m Ratio Was Determined By

Modified 241 Year Ago

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241 Year Ago

E/m Ratio Was Determined By

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399 views

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

Modified 241 Year Ago

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241 Year Ago

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

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341 views

The Minimum Real Charge On Any Particle Which Can Exist Is

Modified 241 Year Ago

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241 Year Ago

The Minimum Real Charge On Any Particle Which Can Exist Is

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334 views

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

Modified 241 Year Ago

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334
241 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
322 views

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

Modified 241 Year Ago

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241 Year Ago

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

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