Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 13

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IMPORTANT

Earn 100

A $5 g$ orbital has:

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Important Questions on Structure of Atom

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Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 14

The electronic transition from

n = 2

to

n = 1

will produce the shortest wavelength in:

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Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 15

Consider a large number of hydrogen atoms with electrons randomly distributed in the

n = 1, 2, 3

and

4

orbits. How many different wavelengths of light are emitted by these atoms as the electrons fall into the lower energy orbits?

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Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 16

If the radius of the first Bohr's orbit is

r,

the wavelength of an electron in the third orbit of the hydrogen atom is equal to

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Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 17

If uncertainties in the measurement of position and momentum are equal for the electron, calculate the uncertainty in the measurement of velocity? (Given that:

\sqrt{\frac{h}{4 π}} = 0.726 \times 10^{- 17}

)

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Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 18

A photon of frequency

v

causes photo electric emission from a surface with the threshold frequency

v_{0}

. The de-Broglie's wavelength

(λ)

of the photo electron emitted is given by:

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Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 19

An electron in a hydrogen like atom makes transition from a state in which its de-Broglie wavelength is

λ_{1}

to a state where its de-Broglie wavelength is

λ_{2}

, then the wavelength of the photon

(λ)

generated will be? (

m

is mass of electron,

c

is speed of light in vacuum)

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Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 20

The correct time independent Schrödinger's wave equation for an electron with

E

as total energy and

V

as potential energy is:

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Chemistry Crash Course JEE Advanced>Chapter 2 - Structure of Atom>Exercise 1>Q 21

Consider following figure $A$ and $B$ indicating distribution of charge density (electron probability $Ψ^{2}$ ) with distance $r .$

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Select the correct statement: