Question

Light with wavelength 500nm is incident upon a surface at an angle of 40.0 degrees, refracts and enters a second medium. The light that enters the second medium travels faster than in the first medium. Compared to properties in the first medium the refracted angle will be (smaller, larger, same), and the index will be (smaller, larger, same), and the frequency will be (smaller, larger, same) and the wavelength will be (smaller larger, same) Angle-larger, index-smaller, frequency-larger, wavelength-larger. Angle-larger, index-smaller, frequency-same, wavelength-larger. Angle-same, index-smaller, frequency-same, wavelength-smaller. Angle-smaller, index-larger, frequency-same, wavelength-smaller. Angle-smaller, index-smaller, frequency-smaller, wavelength-smaller. Angle-larger, index-smaller, frequency-same, wavelength-smaller. Angle-smaller, index-same, frequency-smaller, wavelength-larger. Angle-larger, index-larger, frequency-same, wavelength-larger.

which one is the right one

Answer 1

As we know

Refractive index = speed of light in Vaccum / speed of light in the medium

Hence more the Refractive index, smaller is the speed of light and vice versa.

As speed = frequency* wavelength

Dependency of wavelength on Refractive index is simillar as speed of light .

That medium in which the speed is faster, that medium have less Refractive index taht means the light enters into that medium deviates from the Normal.

We can say the Angle of Refraction is more than the angle of incidence.

Hence

Angle _ larger index _ smaller frequency _ same wavelength _ larger

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