The quantum number not obtained from Schrodinger’s wave equation is:

1. \(n\) 2. \(l\)
3. \(m\) 4. \(s\)

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 83%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The incorrect statement about the nodal plane among the following is: 

1. A plane on which there is a zero probability of finding an electron.
2. A plane on which there is maximum probability that the electron will be found.
3. ψ2 is  zero at nodal plane.
4. None of the above.

Subtopic:  Nodal Plane |
 75%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Be3+ion and a proton are accelerated by the same potential. The ratio of their de-Broglie wavelengths is

(assume mass of proton =  mass of neutron)

1. 1:2

2. 1:4

3. 1:1

4. 1:33

Subtopic:  Bohr's Theory |
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

A dye absorbs a photon of wavelength λ and re-emits the same energy into two photons of wavelengths λ1  and λ2 respectively. The wavelength λ is related to λ1 and λ2 as-

1.  λ=λ1+λ2λ1λ2

2.  λ=λ1λ2λ1+λ2

3.  λ=λ12+λ22λ1+λ2

4.  λ=λ1λ2λ1+λ22

Subtopic:  Bohr's Theory |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The excited state of an H atom emits a photon of wavelength λ and returns to the ground state. The principal quantum number of the excited state is given by:

1.  λRλR-1

2.  λRλR-1

3.  λRλR+1

4.  λR-1λR

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 67%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The graphs that represents the variation of momentum of particle with de-Broglie wavelength is: 

1. 2.
3. 4.

Subtopic:  De Broglie Equation |
 67%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

 The largest de Broglie wavelength among the following (all have equal velocity) is: 

1.  CO2 molecule

2.  NH3 molecule

3.  Electron

4.  Proton

Subtopic:  De Broglie Equation |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The ratio of slopes of Kmax vs. v and V0 vs. v curves in photoelectric effect gives -

(v=frequency, Kmax=maximum kinetic energy, V0 stopping potential):

1.  Charge of electron

2.  Planck's constant

3.  Work function

4.  The ratio of Planck's constant of electronic charge

Subtopic:  Photo Electric Effect |
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The photoelectric emission from a surface starts only when the light incident upon the surface has a certain minimum:

1. Intensity 2. Wavelength
3. Frequency 4. Velocity
Subtopic:  Photo Electric Effect |
 74%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In photoelectric effect, the kinetic energy of photoelectrons increases linearly with the:

1.  Wavelength of incident light.

2.  Frequency of incident light.

3.  Velocity of incident light.

4.  Atomic mass of an element.

Subtopic:  Photo Electric Effect |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh