All Courses
Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity Get the App Login Join for Free
Sign in Open App
Class 12 Exam  >  Class 12 Questions  >  Which colour of the visible spectrum has the ... Start Learning for Free
Which colour of the visible spectrum has the greatest wavelength?
  • a)
    Blue
  • b)
    Yellow
  • c)
    Red
  • d)
    Violet
Correct answer is option 'C'. Can you explain this answer?
Clear all your Class 12 doubts with EduRev
Most Upvoted Answer
Which colour of the visible spectrum has the greatest wavelength?a)Blu...
Violet ---→greatest frequency.....
Red------→greatest wavelength...
Free Test
FREE
Start Free Test
Start Free Test
Community Answer
Which colour of the visible spectrum has the greatest wavelength?a)Blu...
**The Visible Spectrum and Wavelengths**

The visible spectrum refers to the range of electromagnetic radiation that is visible to the human eye. It includes colors ranging from red to violet. Each color corresponds to a specific wavelength of light. Wavelength is the distance between two consecutive peaks or troughs of a wave.

**Determining the Color with the Greatest Wavelength**

To determine which color has the greatest wavelength among the options given, we need to understand the arrangement of colors in the visible spectrum. The visible spectrum can be divided into the following colors, in order of increasing wavelength:

1. Violet
2. Indigo
3. Blue
4. Green
5. Yellow
6. Orange
7. Red

Among the given options, the color with the greatest wavelength is red.

**Explanation**

1. Violet: Violet light has the shortest wavelength in the visible spectrum. It has a higher frequency and energy compared to other colors.
2. Indigo: Indigo light has a slightly longer wavelength than violet light but is still shorter than the other colors in the visible spectrum.
3. Blue: Blue light has a slightly longer wavelength than indigo light.
4. Green: Green light has a longer wavelength than blue light.
5. Yellow: Yellow light has a longer wavelength than green light.
6. Orange: Orange light has a longer wavelength than yellow light.
7. Red: Red light has the longest wavelength among the visible spectrum colors.

Therefore, among the given options, red has the greatest wavelength.

**Conclusion**

In the visible spectrum, red light has the longest wavelength among the colors listed. It has the lowest frequency and energy compared to other colors in the spectrum.
Explore Courses for Class 12 exam

Similar Class 12 Doubts

Read the following text and answer the following questions on the basis of the same:Laser:Electromagnetic radiation is a natural phenomenon found in almost all areas of daily life, from radio waves to sunlight to x-rays. Laser radiation – like all light – is also a form of electromagnetic radiation. Electromagnetic radiation that has a wavelength between 380 nm and 780 nm is visible to the human eye and is commonly referred to as light. At wavelengths longer than 780 nm, optical radiation is termed infrared (IR) and is invisible to the eye. At wavelengths shorter than 380 nm, optical radiation is termed ultraviolet (UV) and is also invisible to the eye. The term “laser light” refers to a much broader range of the electromagnetic spectrum that just the visible spectrum, anything between 150 nm up to 11000 nm (i.e. from the UV up to the far IR). The term laser is an acronym which stands for “light amplification by stimulated emission of radiation”.Einstein explained the stimulated emission. In an atom, electron may move to higher energy level by absorbing a photon. When the electron comes back to the lower energy level it releases the same photon. This is called spontaneous emission. This may also so happen that the excited electron absorbs another photon , releases two photons and returns to the lower energy state. This is known as stimulated emission.Laser emission is therefore a light emission whose energy is used, in lithotripsy, for targeting and ablating the stone inside human body organ.Apart from medical usage, laser is used for optical disk drive, printer, barcode reader etc.Q. What is the range of amplitude of LASER?

Read the following text and answer the following questions on the basis of the same:Laser:Electromagnetic radiation is a natural phenomenon found in almost all areas of daily life, from radio waves to sunlight to x-rays. Laser radiation – like all light – is also a form of electromagnetic radiation. Electromagnetic radiation that has a wavelength between 380 nm and 780 nm is visible to the human eye and is commonly referred to as light. At wavelengths longer than 780 nm, optical radiation is termed infrared (IR) and is invisible to the eye. At wavelengths shorter than 380 nm, optical radiation is termed ultraviolet (UV) and is also invisible to the eye. The term “laser light” refers to a much broader range of the electromagnetic spectrum that just the visible spectrum, anything between 150 nm up to 11000 nm (i.e. from the UV up to the far IR). The term laser is an acronym which stands for “light amplification by stimulated emission of radiation”.Einstein explained the stimulated emission. In an atom, electron may move to higher energy level by absorbing a photon. When the electron comes back to the lower energy level it releases the same photon. This is called spontaneous emission. This may also so happen that the excited electron absorbs another photon , releases two photons and returns to the lower energy state. This is known as stimulated emission.Laser emission is therefore a light emission whose energy is used, in lithotripsy, for targeting and ablating the stone inside human body organ.Apart from medical usage, laser is used for optical disk drive, printer, barcode reader etc.Q. Lithotripsy is

Read the following text and answer the following questions on the basis of the same:Laser:Electromagnetic radiation is a natural phenomenon found in almost all areas of daily life, from radio waves to sunlight to x-rays. Laser radiation – like all light – is also a form of electromagnetic radiation. Electromagnetic radiation that has a wavelength between 380 nm and 780 nm is visible to the human eye and is commonly referred to as light. At wavelengths longer than 780 nm, optical radiation is termed infrared (IR) and is invisible to the eye. At wavelengths shorter than 380 nm, optical radiation is termed ultraviolet (UV) and is also invisible to the eye. The term “laser light” refers to a much broader range of the electromagnetic spectrum that just the visible spectrum, anything between 150 nm up to 11000 nm (i.e. from the UV up to the far IR). The term laser is an acronym which stands for “light amplification by stimulated emission of radiation”.Einstein explained the stimulated emission. In an atom, electron may move to higher energy level by absorbing a photon. When the electron comes back to the lower energy level it releases the same photon. This is called spontaneous emission. This may also so happen that the excited electron absorbs another photon , releases two photons and returns to the lower energy state. This is known as stimulated emission.Laser emission is therefore a light emission whose energy is used, in lithotripsy, for targeting and ablating the stone inside human body organ.Apart from medical usage, laser is used for optical disk drive, printer, barcode reader etc.Q. LASER is used in

Read the following text and answer the following questions on the basis of the same:Laser:Electromagnetic radiation is a natural phenomenon found in almost all areas of daily life, from radio waves to sunlight to x-rays. Laser radiation – like all light – is also a form of electromagnetic radiation. Electromagnetic radiation that has a wavelength between 380 nm and 780 nm is visible to the human eye and is commonly referred to as light. At wavelengths longer than 780 nm, optical radiation is termed infrared (IR) and is invisible to the eye. At wavelengths shorter than 380 nm, optical radiation is termed ultraviolet (UV) and is also invisible to the eye. The term “laser light” refers to a much broader range of the electromagnetic spectrum that just the visible spectrum, anything between 150 nm up to 11000 nm (i.e. from the UV up to the far IR). The term laser is an acronym which stands for “light amplification by stimulated emission of radiation”.Einstein explained the stimulated emission. In an atom, electron may move to higher energy level by absorbing a photon. When the electron comes back to the lower energy level it releases the same photon. This is called spontaneous emission. This may also so happen that the excited electron absorbs another photon , releases two photons and returns to the lower energy state. This is known as stimulated emission.Laser emission is therefore a light emission whose energy is used, in lithotripsy, for targeting and ablating the stone inside human body organ.Apart from medical usage, laser is used for optical disk drive, printer, barcode reader etc.Q. What is the full form of LASER ?

Read the following text and answer the following questions on the basis of the same:Laser:Electromagnetic radiation is a natural phenomenon found in almost all areas of daily life, from radio waves to sunlight to x-rays. Laser radiation – like all light – is also a form of electromagnetic radiation. Electromagnetic radiation that has a wavelength between 380 nm and 780 nm is visible to the human eye and is commonly referred to as light. At wavelengths longer than 780 nm, optical radiation is termed infrared (IR) and is invisible to the eye. At wavelengths shorter than 380 nm, optical radiation is termed ultraviolet (UV) and is also invisible to the eye. The term “laser light” refers to a much broader range of the electromagnetic spectrum that just the visible spectrum, anything between 150 nm up to 11000 nm (i.e. from the UV up to the far IR). The term laser is an acronym which stands for “light amplification by stimulated emission of radiation”.Einstein explained the stimulated emission. In an atom, an electron may move to a higher energy level by absorbing a photon. When the electron comes back to the lower energy level it releases the same photon. This is called spontaneous emission. This may also so happen that the excited electron absorbs another photon , releases two photons and returns to the lower energy state. This is known as stimulated emission.Laser emission is therefore a light emission whose energy is used, in lithotripsy, for targeting and ablating the stone inside the human body organ.Apart from medical usage, laser is used for optical disk drives, printers, barcode readers, etc.Q. The “stimulated emission” is the process of

Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. Can you explain this answer?
Question Description
Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. 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 Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. 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 Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. 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 Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Which colour of the visible spectrum has the greatest wavelength?a)Blueb)Yellowc)Redd)VioletCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
Explore Courses for Class 12 exam
SaveJoin the Discussion on the App for FREE
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Get App
© 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