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Chemistry Part-I

Structure of Atom

Calculate the wavelength, frequency and wave number of a light

Chemistry Part-I

Class 11

NCERT

Chapter 1: Some Basic Concepts of Chemistry

44 questions

Chapter 2: Structure of Atom

85 questions

Find energy of each of the photons which:
(i) correspond to light of frequency 3 x 1015 Hz
(ii) have wavelength of 0-50 A.

Calculate the wavelength, frequency and wave number of a light wave whose period is

2.0 \times 10^{- 10} s

What is the number of photons of light with a wavelength of 4000 pm that provide 1 J of energy?

View all question

Chapter 3: Classification of Elements and Periodicity in Properties

50 questions

Chapter 4: Chemical Bonding and Molecular Structure

44 questions

Chapter 5: States of Matter

28 questions

Chapter 6: Thermodynamics and Thermochemistry

36 questions

Chapter 7: Equilibrium

101 questions

Question

Easy

Solving time: 3 mins

Calculate the wavelength, frequency and wave number of a light wave whose period is $2.0 \times 10^{- 10} s$ .

Views: 6,924 students

Updated on: Feb 17, 2024

Book:

Chemistry Part-I (NCERT)

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Calculate the wavelength, frequency and wave number of a light wave whose period is

2.0 \times 10^{- 10} s

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Text solutionVerified

(i) The frequency of the light wave is

\frac{1}{p er i o d} = \frac{1}{2.0 \times 1 0 ^{- 10} s} = 5 \times 1 0^{9} / s

(ii) The wavelength of light wave is

\frac{c}{ν} = \frac{3 \times 1 0 ^{8} m / s}{5 \times 1 0 ^{9} / s} = 6.0 \times 1 0^{- 2} m

(iii) The wave number of light wave is

\overset{ν}{ˉ} = \frac{1}{λ} = \frac{1}{6.0 \times 1 0 ^{- 2}} = 16.66/ m

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Practice more questions from Chemistry Part-I (NCERT)

Find energy of each of the photons which:
(i) correspond to light of frequency 3 x 1015 Hz
(ii) have wavelength of 0-50 A.

Calculate the wavelength, frequency and wave number of a light wave whose period is

2.0 \times 10^{- 10} s

What is the number of photons of light with a wavelength of 4000 pm that provide 1 J of energy?

View all

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Question Text	Calculate the wavelength, frequency and wave number of a light wave whose period is $2.0 \times 10^{- 10} s$ .
Updated On	Feb 17, 2024
Topic	Structure of Atom
Subject	Chemistry
Class	Class 11
Answer Type	Text solution:1 Video solution: 11
Upvotes	1021
Avg. Video Duration	3 min

Calculate the wavelength, frequency and wave number of a light wave whose period is $2.0 \times 10^{- 10} s$ .

Text solutionVerified

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