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Consider the following statements regarding Magnetogram:
- It helps to detect the strength and location of the magnetic fields on the Sun.
- Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements regarding Magnetogram: It helps to d...
Statement 1: Magnetogram helps to detect the strength and location of the magnetic fields on the Sun.
Statement 2: Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.
Explanation:
Magnetogram is a graphical representation of the magnetic field on the Sun's surface. It is created using observations from magnetographs, which measure the strength and direction of the magnetic field. The magnetogram provides valuable information about the Sun's magnetic activity and helps scientists study various solar phenomena such as sunspots, solar flares, and coronal mass ejections.
Statement 1: Magnetogram helps to detect the strength and location of the magnetic fields on the Sun.
The first statement is correct. Magnetograms are essential tools for studying the Sun's magnetic field. They allow scientists to observe and measure the strength and direction of the magnetic field at different locations on the Sun's surface. This information helps in understanding the dynamics of the Sun's atmosphere and predicting solar activity.
Statement 2: Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.
The second statement is incorrect. In a magnetogram, the strength of the magnetic field is represented by different colors, not by shades of grey and white. Typically, strong magnetic fields are depicted by dark colors such as black or blue, while weak magnetic fields are represented by lighter colors like white or yellow. The exact color scheme varies depending on the specific magnetogram and the instrument used to create it.
To summarize, the correct answer is option 'A' - 1 only. Magnetograms are indeed used to detect the strength and location of the magnetic fields on the Sun, but the second statement incorrectly describes the representation of magnetic field strength in a magnetogram.
Statement 2: Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.
Explanation:
Magnetogram is a graphical representation of the magnetic field on the Sun's surface. It is created using observations from magnetographs, which measure the strength and direction of the magnetic field. The magnetogram provides valuable information about the Sun's magnetic activity and helps scientists study various solar phenomena such as sunspots, solar flares, and coronal mass ejections.
Statement 1: Magnetogram helps to detect the strength and location of the magnetic fields on the Sun.
The first statement is correct. Magnetograms are essential tools for studying the Sun's magnetic field. They allow scientists to observe and measure the strength and direction of the magnetic field at different locations on the Sun's surface. This information helps in understanding the dynamics of the Sun's atmosphere and predicting solar activity.
Statement 2: Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.
The second statement is incorrect. In a magnetogram, the strength of the magnetic field is represented by different colors, not by shades of grey and white. Typically, strong magnetic fields are depicted by dark colors such as black or blue, while weak magnetic fields are represented by lighter colors like white or yellow. The exact color scheme varies depending on the specific magnetogram and the instrument used to create it.
To summarize, the correct answer is option 'A' - 1 only. Magnetograms are indeed used to detect the strength and location of the magnetic fields on the Sun, but the second statement incorrectly describes the representation of magnetic field strength in a magnetogram.
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Consider the following statements regarding Magnetogram: It helps to d...
Recently, scientists developed a new methodology, called Equal Contrast Technique (ECT), to analyze images of the Sun in white light can help obviate temporal and latitudinal variations in observations related to instrument and sky conditions.
- It is known that there are large numbers of regions of weak magnetic field on the sun which vary with time.
- These can be studied using magnetograms and Ca-K line images of the sun as there is strong correlation between the magnetic field and the Ca-K line intensity of the region on sun.
- The magneto-grams are available for short period and the characteristics of the instrument are changing with time.
- Ca-K line images are available for long period at Kodaikanal observatory (KO), for more than 100 years with no change in the optics of the instrument.
- Similarly, other observatories in the world, such as Mount Wilson Observatory (MWO) have this type of data for about 70 years.
- Using the data obtained at Kodaikanal observatory the scientists have shown that correlation between derived plage area (bright region in the sun’s chromosphere) from the Ca-K images and sunspot number is excellent, even on daily basis, over a period of about 100 years for the first time.
- Significance:
- This type of accurate analysis of the historic time series of Ca-K images can be useful for reliable and accurate investigation of variations on the sun and the effect of this on the climatic condition of the earth.
- It helps in understanding the dynamics of the sun, solar cycle variations, dynamo processes in the convection zone and resulting long term climatic variations on the earth.
What is Magnetogram?
- It is an image taken by an instrument which can detect the strength and location of the magnetic fields on the Sun.
- In a magnetogram, grey areas indicate that there is no magnetic field, while black and white areas indicate regions where there is a strong magnetic field.
Hence only statement 1 is correct.
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Consider the following statements regarding Magnetogram: It helps to detect the strength and location of the magnetic fields on the Sun. Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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Consider the following statements regarding Magnetogram: It helps to detect the strength and location of the magnetic fields on the Sun. Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. 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 Consider the following statements regarding Magnetogram: It helps to detect the strength and location of the magnetic fields on the Sun. Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Magnetogram: It helps to detect the strength and location of the magnetic fields on the Sun. Grey areas indicated in it show strong magnetic field and white areas indicate weak magnetic field of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?.
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