1) When a light beam enters one medium from another which of the following quant
ID: 1487324 • Letter: 1
Question
1) When a light beam enters one medium from another which of the following quantities could be changed-the direction of the beam, its velocity, its frequency, its wavelength?2) What is the relationship between the direction of an electromagnetic wave and the direction of its electric field?
3) Which one or more of the following can be polarized? a) sound waves b) white light c) radio waves d) X-rays
4) Why do radio waves readily diffract around buildings whereas light waves which are also electromagnetic in nature do not? 1) When a light beam enters one medium from another which of the following quantities could be changed-the direction of the beam, its velocity, its frequency, its wavelength?
2) What is the relationship between the direction of an electromagnetic wave and the direction of its electric field?
3) Which one or more of the following can be polarized? a) sound waves b) white light c) radio waves d) X-rays
4) Why do radio waves readily diffract around buildings whereas light waves which are also electromagnetic in nature do not?
2) What is the relationship between the direction of an electromagnetic wave and the direction of its electric field?
3) Which one or more of the following can be polarized? a) sound waves b) white light c) radio waves d) X-rays
4) Why do radio waves readily diffract around buildings whereas light waves which are also electromagnetic in nature do not?
Explanation / Answer
1).- when light passes from one medium to another, its speed changes. That means it can vary the beam direction (if not perpendicularly incident).
2).- the relationship of both is perpendicular and the cross product of both. Gives us the direction and propagation of the wave.
3).- the electromagnetic polarization is a property of waves can oscillate with more than one orientation. only white light, radio waves and x-rays can be polarized the sound waves. your lengths, in which your oscillation go always in the direction of the wave.
4).- For wavelengths, Diffraction depends on the wavelength and the size of the obstacle. If the wavelength is larger than the object, this is folded around as if he were not there. otherwise the wavelenght is more little that the object a region of shadow is created.
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