Question bank/JEE Main/Physics
JEE MainPhysicsModerateWave Optics
Visible light of wavelength [IMAGE] falls normally
on single slit and produces a diffractionpattern. It is found that the
second diffraction minimum is at 60º C from the central maximum. If the
first minimum is produced at[IMAGE], then
[IMAGE] is close to



Show answer and solution
For 2^ndminima
So for 1^st minima
[IMAGE] (From equation (i)
[IMAGE] (From sin table)







So for 1^st minima
[IMAGE] (From equation (i)
[IMAGE] (From sin table)







Source: Grass-G / P-14 Physics paper 7 Nov.docx
Need a video for this idea?
Scan any doubt from your notes and get a whiteboard explanation.