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What physical quantity is same for X-rays of wavelength 10-10 m, red light of wavelength 6800 A and radio waves of wavelength 500 m?

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What physical quantity is same for X-rays of wavelength 10-10 m, red light of wavelength 6800 A and radio waves of wavelength 500 m?

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  1. Solution:
    Though they all have different wavelengths and frequencies, but they have same speed i.e., speed of light 3 × 108 m s-1 in vacuum.

    Check the complete chapter with solutions.

    NCERT Solutions for 12th Class Physics: Chapter 8-Electromagnetic Waves