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Which one of the following statements is not true about cosmic rays?
- a)They are electromagnetic waves
- b)They have very high wavelength
- c)They are made of highly energetic charged particles
- d)They originated from the sun
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which one of the following statements is not true about cosmic rays?a)...
Correct option is B. They have very high wavelength
Most Upvoted Answer
Which one of the following statements is not true about cosmic rays?a)...
Understanding Cosmic Rays
Cosmic rays are a fascinating subject in astrophysics, and understanding their characteristics can clarify why option 'B' is not true.
What Are Cosmic Rays?
- Cosmic rays are not electromagnetic waves; they are primarily composed of highly energetic charged particles, such as protons and atomic nuclei.
- They travel through space at nearly the speed of light and can have extremely high energies.
High Wavelength Misconception
- Option 'B' states that cosmic rays have a very high wavelength, which is inaccurate.
- In physics, high wavelength corresponds to low energy (as seen in radio waves), while cosmic rays are characterized by their high energy and thus have very short wavelengths, not very high.
Origin of Cosmic Rays
- While some cosmic rays originate from the Sun, many originate from outside the solar system, including supernova explosions and active galactic nuclei.
- This diverse origin contributes to a wide range of energies in cosmic rays.
Key Characteristics of Cosmic Rays
- They are composed primarily of protons (about 85%), with heavier nuclei and some electrons making up the rest.
- Cosmic rays can penetrate the Earth's atmosphere and even reach the surface, impacting various physical and biological processes.
In summary, the statement in option 'B' is false because cosmic rays do not have a very high wavelength; instead, they possess short wavelengths due to their high energy. Understanding these differences is crucial in the study of cosmic radiation and its effects on Earth and the universe.
Cosmic rays are a fascinating subject in astrophysics, and understanding their characteristics can clarify why option 'B' is not true.
What Are Cosmic Rays?
- Cosmic rays are not electromagnetic waves; they are primarily composed of highly energetic charged particles, such as protons and atomic nuclei.
- They travel through space at nearly the speed of light and can have extremely high energies.
High Wavelength Misconception
- Option 'B' states that cosmic rays have a very high wavelength, which is inaccurate.
- In physics, high wavelength corresponds to low energy (as seen in radio waves), while cosmic rays are characterized by their high energy and thus have very short wavelengths, not very high.
Origin of Cosmic Rays
- While some cosmic rays originate from the Sun, many originate from outside the solar system, including supernova explosions and active galactic nuclei.
- This diverse origin contributes to a wide range of energies in cosmic rays.
Key Characteristics of Cosmic Rays
- They are composed primarily of protons (about 85%), with heavier nuclei and some electrons making up the rest.
- Cosmic rays can penetrate the Earth's atmosphere and even reach the surface, impacting various physical and biological processes.
In summary, the statement in option 'B' is false because cosmic rays do not have a very high wavelength; instead, they possess short wavelengths due to their high energy. Understanding these differences is crucial in the study of cosmic radiation and its effects on Earth and the universe.
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Which one of the following statements is not true about cosmic rays?a)They are electromagnetic wavesb)They have very high wavelengthc)They are made of highly energetic charged particlesd)They originated from the sunCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which one of the following statements is not true about cosmic rays?a)They are electromagnetic wavesb)They have very high wavelengthc)They are made of highly energetic charged particlesd)They originated from the sunCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is not true about cosmic rays?a)They are electromagnetic wavesb)They have very high wavelengthc)They are made of highly energetic charged particlesd)They originated from the sunCorrect answer is option 'B'. Can you explain this answer?.
Which one of the following statements is not true about cosmic rays?a)They are electromagnetic wavesb)They have very high wavelengthc)They are made of highly energetic charged particlesd)They originated from the sunCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which one of the following statements is not true about cosmic rays?a)They are electromagnetic wavesb)They have very high wavelengthc)They are made of highly energetic charged particlesd)They originated from the sunCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is not true about cosmic rays?a)They are electromagnetic wavesb)They have very high wavelengthc)They are made of highly energetic charged particlesd)They originated from the sunCorrect answer is option 'B'. Can you explain this answer?.
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