In young's double slit experiment, if wavelength of light changes from `lambda_(1)` to `lambda_(2)` and distance of seventh maxima changes from `d_(1)` to `d_(2)`. Then

Options

A. `(lambda_(1))/(lambda_(2))`
B. `(lambda_(2))/(lambda_(1))`
C. `(lambda_(1)^(2))/(lambda_(2)^(2))`
D. `(lambda_(2)^(2))/(lambda_(1)^(2))`

Answer

A

Explanation

As, `d_(1)=7lambda_(1)(D)/(d) and d_(2)=7lambda_(2)(D)/(d)`
`therefore (d_(1))/(d_(2))=(lambda_(1))/(lambda_(2))`