(C) The correct pair is $(C)$.Emission spectra consist of discrete lines at specific wavelengths,which directly provide evidence for the quantization

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Emission spectra: The quantization of energy

(C) The correct pair is $(C)$.Emission spectra consist of discrete lines at specific wavelengths,which directly provide evidence for the quantization of energy levels within an atom.$X$-ray spectra relate to the atomic number $(Z)$,$\alpha$-particle scattering demonstrates the existence of a small,dense,positively charged nucleus,and the photoelectric effect demonstrates the particle nature of light (photons).

Class 11 Chemistry Structure of Atom Atomic models and Planck's quantum theory

Medium

In which one of the following pairs of experimental observations and phenomena does the experimental observation correctly account for the phenomenon?

AIIMS 1983 All AIIMS

A
$X$-ray spectra: Charge on the nucleus
B
$\alpha$-particle scattering: Quantized electron orbit
C
Emission spectra: The quantization of energy
D
The photoelectric effect: The nuclear atom

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Structure of Atom

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Atomic models and Planck's quantum theory

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AIIMS 1983 Paper All AIIMS years →

Angular momentum of an electron in the $M$-shell of a $Li^{+2}$ ion is:

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The shortest wavelength of hydrogen atom in Lyman series is $\lambda$. The longest wavelength in Balmer series of $He^{+}$ is

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The energy of an electron in the first orbit of $He^{+}$ is $-871.6 \times 10^{-20} \ J$. What will be the energy of an electron in the first orbit of hydrogen?

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$A$ bulb emits light of wavelength $4500 \ \mathring{A}$. The bulb is rated at $150 \ W$ and $8 \ \%$ of the energy is emitted as light. What is the number of photons emitted by the bulb in $1 \ s$?

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The work function of a metal is $4.2 \, eV$. If radiation of $2000 \, \mathring{A}$ falls on the metal,then the kinetic energy of the fastest photoelectron is:

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In which one of the following pairs of experimental observations and phenomena does the experimental observation correctly account for the phenomenon?

Similar Questions

Angular momentum of an electron in the $M$-shell of a $Li^{+2}$ ion is:

The shortest wavelength of hydrogen atom in Lyman series is $\lambda$. The longest wavelength in Balmer series of $He^{+}$ is

The energy of an electron in the first orbit of $He^{+}$ is $-871.6 \times 10^{-20} \ J$. What will be the energy of an electron in the first orbit of hydrogen?

$A$ bulb emits light of wavelength $4500 \ \mathring{A}$. The bulb is rated at $150 \ W$ and $8 \ \%$ of the energy is emitted as light. What is the number of photons emitted by the bulb in $1 \ s$?

The work function of a metal is $4.2 \, eV$. If radiation of $2000 \, \mathring{A}$ falls on the metal,then the kinetic energy of the fastest photoelectron is:

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