Maximum number of total nodes is present in:

1.  5s

2.  5p

3.  5d

4.  All have same number of nodes

Subtopic:  Nodal Plane |
 74%
From NCERT
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Orbitals having two spherical nodes are: 

1. 2s 2. 4s
3. 3d 4. 6f
Subtopic:  Nodal Plane |
From NCERT
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The correct Schrodinger's wave equation for a electron with total energy E and potential energy V is given by

1.  2ψx2+2ψy2+2ψz2+8π2mh2E-V ψ=0

2.  2ψx2+2ψy2+2ψz2+8πmh2E-V ψ=0

3.  2ψx2+2ψy2+2ψz2+8π2mh2E-V ψ=0

4.  None of the above.

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 63%
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The wave mechanical model of the atom depends upon

1.  De-Broglie concept of dual nature of electron

2.  Heisenberg uncertainty principle

3.  Schrodinger's principle

4.  All

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 70%
From NCERT
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ψ2r, θ, ϕ represents: (for Schrodinger wave mechanical model)

1.  Amplitude of electron wave

2.  Probability density of electron

3.  Total probability of finding electron around nucleus

4.  Orbit

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 51%
From NCERT
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Radial amplitude of electron wave can be represented by

1.  Rr

2.  R2r

3.  4πr2

4.  4πr2R2r

Subtopic:  Photo Electric Effect |
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The Schrodinger wave equation for the hydrogen atom is \(\psi_{2 s}=\frac{1}{4 \sqrt{2 \pi}}\left(\frac{1}{a_0}\right)^{3 / 2}\left(2-\frac{\mathrm{r}}{\mathrm{a}_0}\right) \mathrm{e}^{-\mathrm{r} / \mathrm{a}_0}\) where a0 is Bohr's radius. If the radial node in 2s be at r0, then r0 would be equal to:

1.  a02

2.  2a0

3.  2a0

4.  a02

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 58%
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The Schrodinger wave equation for hydrogen atom is ψradial=1164Za03/2 σ-1 σ2-8σ+12e-σ/2 where a0 and Z are the constant in which answer can be expressed and σ=2Zra0 minimum and maximum position of radial nodes from nucleus are ........ respectively.

1.  a0Z, 3a0Z

2. a02Z, a0Z

3.  a02Z, 3a0Z

4.  a02Z, 4a0Z

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 52%
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Isodiaphers among the following options is :

1.  C614 and N1123 

2.  M1224g  and C1123 

3.  H24e  and O816 

4.  C612  and N715  

Subtopic:  Introduction of Atomic Structure | Number of Electron, Proton & Neutron |
 53%
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The incorrect statement regarding the characteristics of X-rays is :

1. The radiation can ionize the gas

2. It causes a fluorescence effect on ZnS

3. It is deflected by electric and magnetic fields

4. Have a shorter wavelength than ultraviolet rays

Subtopic:  Introduction of Atomic Structure |
 53%
From NCERT
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