Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 3

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The De-Broglie wavelength associated with a ball of mass $1 kg$ having kinetic energy $0.5 J$ is

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Important Questions on Structure of Atom

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 4

The inconsistencies in the velocities of two particles,

A

and

B

are

0.05

and

0.02 {ms}^{- 1}

, respectively. The mass of

B

is five times that of the mass of

A

. What is the ratio of uncertainties in positions

(\frac{{Δx}_{A}}{{Δx}_{B}})

?

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 5

The de-Broglie wavelength of a helium atom at room temperature is

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 6

n

and

ℓ

for some electrons are given. Among the following, which is expected to have least energy?

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 7

If the photon of wavelength

150 pm

strikes an atom and one of its inner bound electron is ejected out with a velocity of

1.5 \times 10^{7} m / s

, what is the energy with which it is bound to the nucleus?

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 8

Smallest wavelength occurs for

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 9

Which of the following statement is wrong for the Bohr's model?

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 10

The ratio of the energy of a photon of wavelength

3000 \overset{\circ}{A}

and

6000 \overset{\circ}{A}

is

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 11

Assertion: Angular momentum of an electron in any orbit is given by angular momentum $= \frac{nh}{2 π},$ where
$n$ is the principal quantum number.

Reason: The principal quantum number $n$ , can have any integral value.