Class 12 Exam > Class 12 Questions > The wavelength of light coming from a sodium ...
Start Learning for Free
The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?
- a)625 nm
- b)443 nm
- c)789 nm
- d)125 nm
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The wavelength of light coming from a sodium source is 589 nm. What wi...
λ = 589 nm, μ = 1.33.
Wavelength in water, λW = λ/μ
λW = 589/1.33
λW = 443 nm.
Wavelength in water, λW = λ/μ
λW = 589/1.33
λW = 443 nm.
Free Test
FREE
| Start Free Test |
Community Answer
The wavelength of light coming from a sodium source is 589 nm. What wi...
Wavelength of light in water
The refractive index of a medium determines how light propagates through it. When light passes from one medium to another, its wavelength changes. In this case, the light is passing from air (or vacuum) to water.
Refractive index of water
The refractive index of water is approximately 1.33. This means that light travels slower in water compared to air or vacuum.
Formula to calculate the wavelength in a different medium
The formula to calculate the wavelength of light in a different medium is:
\(\lambda_2 = \frac{\lambda_1}{n_2}\)
Where:
\(\lambda_2\) is the new wavelength in the medium,
\(\lambda_1\) is the original wavelength,
and \(n_2\) is the refractive index of the medium.
Given values
\(\lambda_1\) = 589 nm (wavelength in air or vacuum)
\(n_2\) = 1.33 (refractive index of water)
Calculating the wavelength in water
Using the formula, we can calculate the new wavelength in water:
\(\lambda_2 = \frac{589}{1.33}\)
\(\lambda_2 \approx 442.86\)
Rounding to the nearest whole number, the wavelength in water is approximately 443 nm.
Therefore, the correct answer is option B) 443 nm.
The refractive index of a medium determines how light propagates through it. When light passes from one medium to another, its wavelength changes. In this case, the light is passing from air (or vacuum) to water.
Refractive index of water
The refractive index of water is approximately 1.33. This means that light travels slower in water compared to air or vacuum.
Formula to calculate the wavelength in a different medium
The formula to calculate the wavelength of light in a different medium is:
\(\lambda_2 = \frac{\lambda_1}{n_2}\)
Where:
\(\lambda_2\) is the new wavelength in the medium,
\(\lambda_1\) is the original wavelength,
and \(n_2\) is the refractive index of the medium.
Given values
\(\lambda_1\) = 589 nm (wavelength in air or vacuum)
\(n_2\) = 1.33 (refractive index of water)
Calculating the wavelength in water
Using the formula, we can calculate the new wavelength in water:
\(\lambda_2 = \frac{589}{1.33}\)
\(\lambda_2 \approx 442.86\)
Rounding to the nearest whole number, the wavelength in water is approximately 443 nm.
Therefore, the correct answer is option B) 443 nm.
|
Explore Courses for Class 12 exam
|
|
Top Courses for Class 12View all
Question Description
The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer?.
The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water?a)625 nmb)443 nmc)789 nmd)125 nmCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 12 tests.
|
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup