1
MHT CET 2023 9th May Morning Shift
+1
-0

For an electron moving in the $$\mathrm{n}^{\text {th }}$$ Bohr orbit the deBroglie wavelength of an electron is

A
$$\mathrm{n} \pi \mathrm{r}$$
B
$$\frac{\pi r}{\mathrm{n}}$$
C
$$\frac{\mathrm{nr}}{2 \pi}$$
D
$$\frac{2 \pi r}{\mathrm{n}}$$
2
MHT CET 2023 9th May Morning Shift
+1
-0

If an electron in a hydrogen atom jumps from an orbit of level $$n=3$$ to orbit of level $$n=2$$, then the emitted radiation frequency is (where R = Rydberg's constant, C = Velocity of light)

A
$$\frac{3 \mathrm{RC}}{27}$$
B
$$\frac{\mathrm{RC}}{25}$$
C
$$\frac{8 \mathrm{RC}}{9}$$
D
$$\frac{5 \mathrm{RC}}{36}$$
3
MHT CET 2021 21th September Evening Shift
+1
-0

Ratio centripetal acceleration for an electron revolving in 3rd and 5th Bohr orbit of hydrogen atom is

A
425 : 18
B
625 : 81
C
125 : 27
D
221 : 36
4
MHT CET 2021 21th September Morning Shift
+1
-0

When an electron in hydrogen atom jumps from third excited state to the ground state, the de-Broglie wavelength associated with the electron becomes

A
$$\left(\frac{1}{2}\right)^{\text {th }}$$
B
$$\left(\frac{1}{4}\right)^{\text {th }}$$
C
$$\left(\frac{1}{8}\right)^{\text {th }}$$
D
$$\left(\frac{1}{6}\right)^{\text {th }}$$
MHT CET Subjects
Physics
Mechanics
Optics
Electromagnetism
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
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Algebra
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