Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Tell me? Which one is the wrong statement?

Which one is the wrong statement?

  • Option 1)

    de-Broglie's wavelength is given by \lambda = \frac{\text{h}} {{\text{m}\upsilon }},  where m = mass of the particle, \upsilon = group velocity of the particle.

     

  • Option 2)

    The uncertainty principle is \Delta \text{E} \times \Delta \text{t} \geqslant {\raise0.7ex\hbox{\text{h}} \!\mathord{\left/ {\vphantom {\text{h} {4\pi }}}\right.\kern-\nulldelimiterspace} \!\lower0.7ex\hbox{{4\pi }}}.

  • Option 3)

    Half-filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement.

  • Option 4)

    The energy of 2s orbital is less than the energy of 2p orbital in case of Hydrogen like atoms.

 

Answers (1)

best_answer

As we learnt in

Principal Quantum Number -

The principal quantum number determines the size and to large extent the energy of the orbital.

-

 

 

 

 For hydrogen like atom, the energy of 2s orbital is same as energy of 2p orbital.


Option 1)

de-Broglie's wavelength is given by \lambda = \frac{\text{h}} {{\text{m}\upsilon }},  where m = mass of the particle, \upsilon = group velocity of the particle.

 

Incorrect

Option 2)

The uncertainty principle is \Delta \text{E} \times \Delta \text{t} \geqslant {\raise0.7ex\hbox{$\text{h}$} \!\mathord{\left/ {\vphantom {\text{h} {4\pi }}}\right.\kern-\nulldelimiterspace} \!\lower0.7ex\hbox{${4\pi }$}}.

Incorrect

Option 3)

Half-filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement.

Incorrect

Option 4)

The energy of 2s orbital is less than the energy of 2p orbital in case of Hydrogen like atoms.

Correct

Posted by

Aadil

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NTA Overhaul: 1,000 secure exam centres, biometrics to prevent fraud, question paper changes, suggests panel
anam-khan

NEET syllabus 2025 out; NMC uploads subject-wise topics
anam-khan

What changes in NEET UG? Experts’ panel suggests multi-stage exam, security overhaul, simpler process to NTA

Latest Question