Mixture of light consisting of wavelength 590 nm and an unknown wavelength illuminate’s young's double slit and gives rise to two overlapping interference patterns on the screen. The central maximum of both lights coincide. Further, it is observed that the third bright fringe of known light coincides with the 
bright fringe of unknown light. From this data, the wavelength of unknown light is
Text Solution
Verified by ExpertsThe correct answer is:
B
As 
bright fringe of unknown wavelength ( 
) coincides with 
bright fringe of known wavelength ( 
)
or 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
In the Young's double slit experiment, the intensity of light at a point on the screen (where the p…
In Young's double slit interference experiment, using two coherent waves of different amplitudes, t…
In a single slit diffraction experiment, first minimum for red light coincides with first maximum …
A Young's double slit set up for interference is shifted from air to water, then the fringe width:
The wavelength of the light used in Young's double slit experiment is . The intensity at a point o…
The necessary condition for an interference by two sources of light is that: