Which of the following statements is incorrec | vedclass

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(C) In a vacuum, all electromagnetic waves, regardless of their frequency or wavelength, travel at the same speed, which is $c \approx 3 	imes 10^8 \

Vedclass · Accepted Answer

In vacuum, red light travels faster than others.

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(C) In a vacuum, all electromagnetic waves, regardless of their frequency or wavelength, travel at the same speed, which is $c \approx 3 	imes 10^8 \ m/s$. Therefore, the statement that red light travels faster than other colours in a vacuum is incorrect, as all colours of white light travel at the same speed in a vacuum. Option $A$ is correct because violet light has the shortest wavelength and experiences the most deviation. Option $B$ is correct because the refractive index for red light is lower than that for violet light in any material medium, implying $v = c/n$ is higher for red light. Option $D$ is correct because flint glass has a higher dispersive power and generally higher refractive indices than crown glass.

Which of the following statements is incorrect?

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