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Earth’s magnetosphere is the area around the Earth where the geomagnetic field
stretches out into space. Consider the following statements regarding magnetosphere.
1) It is uneven in shape as it stretches largely towards the Sun because of Sun’s
magnetic field.
2) Solar winds can have influence on the Earth’s magnetosphere.
3) This sphere deflects the charged particles that approach the Earth’s surface.
Choose the correct statement/s from the following codes
1&2 only
2&3 only
1&3 only
All of the above
First statement is wrong because the magnetosphere stretches away from the Sun and not towards the Sun. The solar wind is a stream of plasma released from the upper atmosphere of the Sun. It consists of mostly electrons, protons and alpha particles with energies usually between 1.5 and 10 keV. As the solar wind approaches a planet that has a well-developed magnetic field (such as Earth, Jupiter and Saturn), the particles are deflected by the Lorentz force. This region, known as the magnetosphere, causes the particles to travel around the planet rather than bombarding the atmosphere or surface. The magnetosphere is roughly shaped like a hemisphere on the side facing the Sun, then is drawn out in a long wake on the opposite side. The boundary of this region is called the magnetopause, and some of the particles are able to penetrate the magnetosphere through this region by partial reconnection of the magnetic field lines.
By: Shubham Tiwari ProfileResourcesReport error
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