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light of wavelength = 10 Nanometer falls on a surface having W

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light of wavelength = 10 Nanometer falls on a surface having Work function as ${e \cdot v$ Calculate

energy of incoming electrons
frequency of incoming light
threshold frequency
max kinetic energy of electrons
kinetic encrgy of ejected clectrons

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{e \cdot v

Calculate

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Practice more questions on Atomic Structure

Question 1

Geometrical configuration of

BF_{3}

and

NF_{3}

molecules is (a) the same because of same covalency of the central atom (b) different because

BF_{3}

is polar and

NF_{3}

is non-polar (c) different because

BF_{3}

is non-polar and

NF_{3}

is polar (d) none is correct

Topic:

Chemical Bonding and Molecular Structure

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Question 2

Easy

The intermolecular force of attraction between non-polar molecules is called

H-bonding
dispersion forces
interionic attraction
adhesive forces

Topic:

States of Matter

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

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Question 3

Hard

1 cc

N_{2} O

at NTP contains :

$\frac{1.8}{22.4} \times 1 0^{21}$ atoms
$\frac{6.02}{22400} \times 1 0^{23}$ molecules
$\frac{1.3}{224} \times 1 0^{23}$ electrons
All the above

Topic:

Some Basic Concepts of Chemistry

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Question 4

Medium

Which of the following statement(s) is(are) correct regarding the root mean square speed

(U_{rms})

and average translational kinetic energy

(E_{av})

of a molecule in a gas at equilibrium?

$U_{rms}$ is inversely proportional to the square root of its molecular mass
$U_{rms}$ is doubled when its temperature is increased four times
$E_{av}$ is doubled when its temperature is increased four times
$E_{av}$ at a given temperature does not depend on its molecular mass

Topic:

States of Matter

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

View 2 solutions

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2:1.1 Discovery of Electron
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Topic:

Atomic Structure

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Question 2

Topic:

Atomic Structure

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Question 3

I = 1

5. In hydrogen atom, the de Brogir wit is [Given that Bohr radius,

a_{0} = 52.9 pm

] [NEET-2019 (Odisha)]

$211.6 pm$
$105.8 pm$
$52.9 π pm$
$211.6 π pm$

Topic:

Atomic Structure

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Question 4

9) Bohr's th 1h Bohr's theory catablished the quastem numbers: This station ary atatco for elistie tevatiof 3) Bubr's thesry cauks eqplain the atemic spectrum of bydrogen: The different spectai level.

Topic:

Atomic Structure

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Question Text	light of wavelength = 10 Nanometer falls on a surface having Work function as ${e \cdot v$ Calculate
Topic	Atomic Structure
Subject	Chemistry
Class	Class 11