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Which of the following, is the longest wave ? [1989]
- a)X-rays
- b)γ - rays
- c)microwaves
- d)radiowaves
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following, is the longest wave ? [1989]a)X-raysb)&gamma...
Rays - Wavelength
[Range in m]
X-rays - 1 × 10–11 to 3 × 10–8
γ-rays - 6 × 10–14 to 1 × 10–11
Microwaves - 10–3 to 0.3
Radiowaves - 10 to 104
[Range in m]
X-rays - 1 × 10–11 to 3 × 10–8
γ-rays - 6 × 10–14 to 1 × 10–11
Microwaves - 10–3 to 0.3
Radiowaves - 10 to 104
Most Upvoted Answer
Which of the following, is the longest wave ? [1989]a)X-raysb)&gamma...
Understanding Wave Types
Electromagnetic waves vary in wavelength and frequency. The longer the wavelength, the lower the frequency, and vice versa. The options provided include different types of electromagnetic radiation.
Types of Waves Explained
- X-rays:
- Wavelength: 0.01 to 10 nanometers
- Used in medicine for imaging.
- High frequency and energy.
- Gamma Rays:
- Wavelength: Less than 0.01 nanometers
- Emitted from radioactive materials.
- Extremely high frequency and energy.
- Microwaves:
- Wavelength: 1 millimeter to 1 meter
- Commonly used in cooking and communication.
- Lower frequency than X-rays and gamma rays.
- Radiowaves:
- Wavelength: 1 millimeter to 100 kilometers
- Used in radio and television broadcasting.
- Longest wavelength among the options listed.
Conclusion: Why Radiowaves are the Longest
Among the options, radiowaves possess the longest wavelengths. This characteristic places them at the lower end of the electromagnetic spectrum, below microwaves, X-rays, and gamma rays. Understanding the wavelength hierarchy is essential for grasping the properties of electromagnetic radiation.
Key Takeaway
- Correct Answer: Radiowaves (Option D)
- Reason: They have the longest wavelength, making them the least energetic compared to the other types listed.
This knowledge is fundamental in physics and essential for various applications in technology and medicine.
Electromagnetic waves vary in wavelength and frequency. The longer the wavelength, the lower the frequency, and vice versa. The options provided include different types of electromagnetic radiation.
Types of Waves Explained
- X-rays:
- Wavelength: 0.01 to 10 nanometers
- Used in medicine for imaging.
- High frequency and energy.
- Gamma Rays:
- Wavelength: Less than 0.01 nanometers
- Emitted from radioactive materials.
- Extremely high frequency and energy.
- Microwaves:
- Wavelength: 1 millimeter to 1 meter
- Commonly used in cooking and communication.
- Lower frequency than X-rays and gamma rays.
- Radiowaves:
- Wavelength: 1 millimeter to 100 kilometers
- Used in radio and television broadcasting.
- Longest wavelength among the options listed.
Conclusion: Why Radiowaves are the Longest
Among the options, radiowaves possess the longest wavelengths. This characteristic places them at the lower end of the electromagnetic spectrum, below microwaves, X-rays, and gamma rays. Understanding the wavelength hierarchy is essential for grasping the properties of electromagnetic radiation.
Key Takeaway
- Correct Answer: Radiowaves (Option D)
- Reason: They have the longest wavelength, making them the least energetic compared to the other types listed.
This knowledge is fundamental in physics and essential for various applications in technology and medicine.
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Which of the following, is the longest wave ? [1989]a)X-raysb)γ - raysc)microwavesd)radiowavesCorrect answer is option 'D'. 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 of the following, is the longest wave ? [1989]a)X-raysb)γ - raysc)microwavesd)radiowavesCorrect answer is option 'D'. 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 of the following, is the longest wave ? [1989]a)X-raysb)γ - raysc)microwavesd)radiowavesCorrect answer is option 'D'. Can you explain this answer?.
Which of the following, is the longest wave ? [1989]a)X-raysb)γ - raysc)microwavesd)radiowavesCorrect answer is option 'D'. 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 of the following, is the longest wave ? [1989]a)X-raysb)γ - raysc)microwavesd)radiowavesCorrect answer is option 'D'. 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 of the following, is the longest wave ? [1989]a)X-raysb)γ - raysc)microwavesd)radiowavesCorrect answer is option 'D'. Can you explain this answer?.
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