The video tutorial explains the Doppler effect in light waves, comparing it to the Doppler effect in sound waves. It describes how the frequency and wavelength of light change when the source moves relative to the observer, leading to phenomena known as red shift and blue shift. Red shift occurs when light shifts to longer wavelengths, while blue shift occurs with shorter wavelengths. The tutorial also discusses how these shifts can be observed using a spectroscope.

What was the initial discovery related to the Doppler Effect?

• In sound waves

• In water waves

• In light waves

• In seismic waves

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What happens to the frequency of light when the source moves towards the observer?

• It remains the same

• It decreases

• It increases

• It fluctuates

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How does the color of light change when its frequency changes?

• The color becomes more intense

• The color changes

• The color fades

• The color remains the same

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Which color in the visible spectrum has the longest wavelength?

• Green

• Blue

• Red

• Yellow

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What is the term used for a shift towards longer wavelengths?

• Blueshift

• Redshift

• Greenshift

• Yellowshift

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What happens to the wavelength when the source of light moves away from the observer?

• It increases

• It fluctuates

• It remains the same

• It decreases

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Which device is used to observe the Doppler Effect in light?

• Oscilloscope

• Microscope

• Spectroscope

• Telescope

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