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OpenStudy (anonymous):

Which type of wave requires no medium? sound wave, light wave, water wave, or ultrasonic wave ? :/

OpenStudy (michele_laino):

it is simple, it is light wave, since a light wave is an electromagnetic wave, furthermore, Sun illuminates Earth using light wave which ptopagate into the empty space

OpenStudy (anonymous):

oohh okay!! thank you:) i will remember that! :P

OpenStudy (michele_laino):

propagate*

OpenStudy (michele_laino):

:)

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