Physics - Current Electricity Question with Solution | TestHub

${\lambda }_2$ is longer than ${\lambda }_1$ and the ratio of the longer to the shorter wavelength is $1.5$

${\lambda }_1$ is longer than ${\lambda }_2$ and the ratio of the longer to the shorter wavelength is $1.5$

${\lambda }_1$ and ${\lambda }_2$ are equal and their ratio is $1.0$

${\lambda }_2$ is longer than ${\lambda }_1$ and the ratio of the longer to the shorter wavelength is $2.5$.