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JEE Main 2024 (Online) 8th April Evening Shift
Numerical
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-1
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Wavenumber for a radiation having 5800 $$\mathop A\limits^o $$ wavelength is $$x \times 10 \mathrm{~cm}^{-1}$$ The value of $$x$$ is ________. (Integer answer)

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2
JEE Main 2024 (Online) 8th April Morning Shift
Numerical
+4
-1
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A hypothetical electromagnetic wave is show below.

JEE Main 2024 (Online) 8th April Morning Shift Chemistry - Structure of Atom Question 7 English

The frequency of the wave is $$\mathrm{x} \times 10^{19} \mathrm{~Hz}$$.

$$\mathrm{x}=$$ _________ (nearest integer)

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3
JEE Main 2024 (Online) 6th April Evening Shift
Numerical
+4
-1
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For hydrogen atom, energy of an electron in first excited state is $$-3.4 \mathrm{~eV}, \mathrm{K} . \mathrm{E}$$. of the same electron of hydrogen atom is $$x \mathrm{~eV}$$. Value of $$x$$ is _________ $$\times 10^{-1} \mathrm{~eV}$$. (Nearest integer)

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4
JEE Main 2024 (Online) 6th April Morning Shift
Numerical
+4
-1
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Frequency of the de-Broglie wave of electron in Bohr's first orbit of hydrogen atom is _________ $$\times 10^{13} \mathrm{~Hz}$$ (nearest integer).

[Given : $$\mathrm{R}_{\mathrm{H}}$$ (Rydberg constant) $$=2.18 \times 10^{-18} \mathrm{~J}, h$$ (Plank's constant) $$=6.6 \times 10^{-34} \mathrm{~J} . \mathrm{s}$$.]

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