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.

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Wave mechanical model of the atom depends upon

1.  De-Broglie concept of dual nature of electron

2.  Heisenberg uncertainty principle

3.  Schrodinger uncertainty principle

4.  All

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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

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Radial amplitude of electron wave can be represented by

1.  Rr

2.  R2r

3.  4πr2

4.  4πr2R2r

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The Schrodinger wave equation for hydrogen atom is ψ2s=142π1a03/2 2-ra0 e-r/a0 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

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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

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Which of the following pair is isodiaphers?

1.  C614 and Na1123

2.  Mg1224 and Na1123

3.  He24 and O816

4.  C612 and N715

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Which of the following does not characterise X-rays?

1.  The radiation can ionise the gas

2.  It causes fluorescence effect on ZnS

3.  Deflected by electric and magnetic fields

4.  Have wavelength shorter than ultraviolet rays

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The correct expression derived for the energy of an electron in the nth energy level is for H-atom

1.  En=2π2 me4 K2n2 h2

2.  En=-π2 me4 K22n2 h2

3.  En=-2π2 me2 K2n2 h2

4.  En=-2π2 me4 K2n2 h2

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For any H like system, the ratio of velocities of I, II & III orbit i.e., V1 : V2 : V3 will be

1.  1 : 2 : 3

2.  1 : 1/2 : 1/3

3.  3 : 2 : 1

4.  1 : 1 : 1

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