In air, the wavelength of sodium light is 589 nm. (a) Determine its frequency in the air. (b) Find its wavelength in water (refractive index = 1.33). (c) Determine its frequency in water. (d) Determine its speed in water.

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Given that, for sodium light,    1    =    589    n    m    =    589    &amp;#x00D7;          10              &amp;#x2212;        9              m  (a)          f      a        =                  3        &amp;#x00D7;                  10          8                            589        &amp;#x00D7;                  10                      &amp;#x2212;            9                                    =    5.09    &amp;#x00D7;          10              14                    sec              &amp;#x2212;        1            (b)                  &amp;#x03BC;        a                    &amp;#x03BC;        w              =                  &amp;#x03BB;        w                    &amp;#x03BB;        q                  &amp;#x21D2;          1      1.33        =                  &amp;#x03BB;        w                    589        &amp;#xD7;                  10                      &amp;#x2212;            9                                    &amp;#x21D2;          &amp;#x03BB;      w        =    443    n    m  (c)          f      w        =          f      a            =    5.09    &amp;#x00D7;          10              14              s    e          c              &amp;#x2212;        1                  &amp;#x21D2;          v      w        =                            &amp;#x03BC;          a                          v          a                            &amp;#x03BC;        w                  =                  3        &amp;#x00D7;        108                    (        1.33        )              =    2.25    &amp;#xD7;          10      8        m          /        s    e    c    .

In air, the wavelength of sodium light is 589 nm. (a) Determine its frequency in...

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