The wavelength of the light of red and blue colours are nearly 7.8×10⁻⁷ m and 4.8×10⁻⁷ m respectively. Which colour has greater speed in vacuum?

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TextRelationship Between Wavelength, Frequency and Speed

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A source of sound emits waves of frequency 500 Hz in air. The speed of sound in air is 340 m/s. (a) What is the wavelength of the sound wave? (b) How much time does the wave take to travel a distance of 170 m?

TextRelationship Between Wavelength, Frequency and Speed

Light travels a distance of '10x' units in time 't₁' in vacuum and it travels a distance of 'x' units in time 't₂' in a denser medium. Using this information answer the question that follows:

TextRefractive Index of a Medium

Relationship Between Wavelength, Frequency and Speed