VACUUM is 299,792,458 m/s and it is denoted with small c.It does not NEED a medium to travel.Light travels in a straight line in a medium or vacuum (rectilinear propagation of light).EXPLANATION:In a vacuum, the speed of light does not depend on wavelength, frequency, and intensity.From above it is clear that, light does not need a medium to travel. THEREFORE option 2 is incorrect.Light waves are electromagnetic waves. Therefore option 3 is correct.As we know that light waves are COMPOSED of seven colours, therefore variation in the frequency of wave GIVES different colours.

"> VACUUM is 299,792,458 m/s and it is denoted with small c.It does not NEED a medium to travel.Light travels in a straight line in a medium or vacuum (rectilinear propagation of light).EXPLANATION:In a vacuum, the speed of light does not depend on wavelength, frequency, and intensity.From above it is clear that, light does not need a medium to travel. THEREFORE option 2 is incorrect.Light waves are electromagnetic waves. Therefore option 3 is correct.As we know that light waves are COMPOSED of seven colours, therefore variation in the frequency of wave GIVES different colours.

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Which of the following is not true about Light Waves?

General Knowledge General Awareness in General Knowledge 10 months ago

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​CONCEPT:Light is a form of energy that makes us the sensation of sight.Light is a form of Electromagnetic waves.The speed of light in the VACUUM is 299,792,458 m/s and it is denoted with small c.It does not NEED a medium to travel.Light travels in a straight line in a medium or vacuum (rectilinear propagation of light).EXPLANATION:In a vacuum, the speed of light does not depend on wavelength, frequency, and intensity.From above it is clear that, light does not need a medium to travel. THEREFORE option 2 is incorrect.Light waves are electromagnetic waves. Therefore option 3 is correct.As we know that light waves are COMPOSED of seven colours, therefore variation in the frequency of wave GIVES different colours.

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Posted on 24 Nov 2024, this text provides information on General Knowledge related to General Awareness in General Knowledge. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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