Light is a form of electromagnetic radiation. Which statement about light waves is NOT true?

It has a varying amplitude.

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It cannot pass through the vacuum.

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Its wavelength can vary.

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It can pass through the vacuum.

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Solution

The correct option is B
It cannot pass through the vacuum.

Light is a non-mechanical wave that means it doesn't need a medium to travel. So, it can travel through vacuum. Wavelength and amplitude of light can change depending upon medium but its frequency remains constant because it only depends upon the source.

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