Magnetic Methods

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Quiz on Magnetic Methods

 

You have to face 10 multiple-choice questions each carrying 1 mark. Each question has only one correct answer out of 4 options. Answering all the questions is not mandatory. The quiz will be auto submitted after the timer stops.

 

Total no. of questions: 10
Full marks: 10
Time: 10 Minutes

 

1 / 10

Which of the following materials is not commonly used in the construction of a magnetometer?

2 / 10

What is the name of the boundary between Earth’s core and mantle, where the magnetic field is generated?

3 / 10

What is the primary source of Earth’s magnetic field?

4 / 10

What is the primary component of the Earth’s magnetic field that is measured in magnetic surveys?

5 / 10

What property of certain rocks makes them suitable for paleomagnetic studies?

6 / 10

In which layer of the Earth’s interior does palaeomagnetism provide important information about past magnetic field changes?

7 / 10

What unit is used to measure the strength of a magnetic field?

8 / 10

The lines connecting points of zero magnetic declination on a magnetic map is known as

9 / 10

What is the primary mineral responsible for recording Earth’s magnetic field in rocks?

10 / 10

What is the term for the phenomenon where a magnetic field induces an electric current in a conductor?

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Advanced Quiz on Magnetic Methods

 

You have to face 10 multiple-choice questions each carrying 1 mark. Each question has only one correct answer out of 4 options. Answering all the questions is not mandatory. The quiz will be auto submitted after the timer stops.

 

Total no. of questions: 10
Full marks: 10
Time: 10 Minutes

 

1 / 10

How do scientists use paleomagnetic data to study plate tectonics?

2 / 10

Which of the following can cause a magnetic anomaly?

3 / 10

What is the primary advantage of using aeromagnetic surveys in geophysics?

4 / 10

How can magnetic methods help in identifying fault zones?

5 / 10

What is the primary objective of a ground magnetic survey?

6 / 10

Which of the following is a common application of magnetic surveys in mineral exploration?

7 / 10

What does the term “magnetic susceptibility” refer to in geophysics?

8 / 10

What is the significance of magnetic declination in magnetic surveys?

9 / 10

What does the term “Paleo intensity” refer to in Palaeomagnetism?

10 / 10

What is the Curie temperature in the context of magnetic methods in geophysics?

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Introduction

Magnetic methods are geophysical techniques used to study variations in the Earth’s magnetic field caused by the magnetic properties of rocks and minerals. These methods help scientists locate valuable mineral deposits, map geological structures, and study archaeological sites. Using instruments called magnetometers, magnetic surveys measure anomalies in the magnetic field, which indicate the presence of different rock types or buried objects. Non-invasive and efficient, magnetic methods are widely used in mineral exploration, environmental investigations, and even in detecting underground utilities. They provide critical insights into the Earth’s subsurface, helping us unlock its hidden features and resources.