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1
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statements about the Bohr model of the hydrogen atom is false?

A
Acceleration of electron in $\mathrm{n}=2$ orbit is less than that in $n=1$ orbit.
B
Angular momentum of electron in $\mathrm{n}=2$ orbit is more than that in $n=1$ orbit.
C
Kinetic energy of electron in $\mathrm{n}=2$ orbit is less than that in $\mathrm{n}=1$ orbit.
D
Potential energy of electron in $\mathrm{n}=2$ orbit is less than that in $n=1$ orbit.
2
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The radius of innermost orbit of hydrogen atom is $5.3 \times 10^{-11} \mathrm{~m}$. The radius of fourth allowed orbit of hydrogen atom is

A
8.48 $$\mathop A\limits^o $$
B
2.12 $$\mathop A\limits^o $$
C
4.77 $$\mathop A\limits^o $$
D
0.53 $$\mathop A\limits^o $$
3
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the third orbit of hydrogen atom the energy of an electron ' $E$ '. In the fifth orbit of helium $(Z=2)$ the energy of an electron will be

A
$\frac{25 \mathrm{E}}{36}$
B
$\frac{36 \mathrm{E}}{25}$
C
$\frac{3 \mathrm{E}}{5}$
D
$\frac{5 \mathrm{E}}{3}$
4
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Ratio of longest wavelength corresponding to Lyman and Balmer series in hydrogen spectrum is

A
$$\frac{7}{29}$$
B
$$\frac{9}{31}$$
C
$$\frac{5}{27}$$
D
$$\frac{3}{23}$$
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