EXAMIANS
Coherence of two electromagnetic waves takes place if their phase difference is:
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The normal altitude of GPS satellite is about
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Due to perturbation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its
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The most widely used antenna in GPS is
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In case of reflection and refraction of electromagnetic radiation,
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"An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as:
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Which one of the following statements is correct regarding the GPS satellites?
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The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called:
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'A time varying electric field produces a magnetic field.' This phenomenon is called:
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Which one of the following statement is correct?
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