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भूगोल.3) 3 पूढीच विधाने चूक कि बरोबर ते लिहा.चुकीची विधाने दुरुस्त करा.) भारतात तीन प्रमाणवेळा मानल्या जातात.​

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Answer:

He was able to DETERMINE WAVELENGTH from the interference patterns, and knowing their frequency, he could calculate the propagation SPEED using the EQUATION v = fλ (velocity—or speed—equals frequency times wavelength). Hertz was thus able to PROVE that electromagnetic waves travel at the speed of light.

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