_______ has the same value for all waves when travelling through vacuum.

Speed

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Wavelength

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Amplitude

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Frequency

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Solution

The correct option is A Speed
The speed of light is constant in the vacuum and it is nearly equal to 300000 km/s. This is applicable to electromagnetic waves also . Hence, all the waves of an electromagnetic spectrum move at the speed nearly equal to 300000 km/s. Different parts of the spectrum have different wavelengths, frequency and amplitude.

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Similar questions

4000 ˚ A

μ_{a i r} = 1.0008

Two waves A and B have wavelength 0.01 $\circ A$ and 9000 $\circ A$ respectively.

(a) Name the two waves.

(b) Compare the speeds of these waves when they travel in vacuum.

λ

L_{1}

μ_{1}

L_{2}

μ_{2}

Which of the following has the same value for all waves when travelling through vacuum?

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