Monochromatic light of wavelength 589 nm is incident from...

Transcript

00:01 Hi guys, now in this film we have monochromatic light which has a wavelength lambda is equal to this is lambda is equal to 5 8 nanometer now since it is light so it is travels in a air with the speed of v is equal to c which is what light speed 3 times 10 to the bar 8 meter per second what is frequency frequency is obvious that frequency f is equal to v divided b lambda and that is what this is 3 times 3 times 10 to the bar 8 divide by this is 589 times 10 to the bar minus 9 this is frequency now this monochromatic light is refracted from the surface of the water okay so the refractive index of the water is at 4 divided 3 so we need to find out wavelength frequency and speed now since frequency is not dependent on the what medium frequency does not depend on medium that means frequency will not change so f is equal to as it is which is what three times ten to the bar eight and this is five eight nine times ten to the power minus nine or i can say in other words let me write down this is three thousand so this is ten to power five and this is three thousand and this is being left with what ten to per five and this is ten to per fourteen divide with five eight nine now three thousand divide by 589 which is what 5 .0 this is f is equal to 5 .09 times 10 to the power 14 h h hirg frequency is not changed but velocity of the light will be changed what is velocity velocity becomes c divided by lambda and what is c basically c is what uh 3 times 10 to the power 8 divide by lambda sorry this is not lambda i'm so sorry this is refractive index n so this is 4 divide by 3 which is one nine divide by four and nine divide by four can be written at two point two five so two point two five the speed will be about two point two five times ten to the power eight meter per second navigate speed now we can find out lambda easily what is lambda is equal to a v divide by f so what is we basically v is what five point sorry and this is two times two five times ten to the power fourteen divide way this will be one what 2 .25 sorry this is 5 .0 9 i'm so sorry 5 .09 divided by 2 .25 times 10 to the power 8 now this value is equal to what this value is equal to lambda is equal to what this can be written as do i did any mistake yeah v is what 2 .25 i'm so sorry for that i did a mistake here this is 2 .25 times 10 to the power 8 divide by 5...

Question

Monochromatic light of wavelength 589 nm is incident from air on a water surface. If mu for water is 1.33 , find the wavelength, frequency and speed of the refracted light.

Question

Monochromatic light of wavelength 589 nm is incident from air on a water surface. If mu for water is 1.33 , find the wavelength, frequency and speed of the refracted light.

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