MHT CET 202625 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 25 April
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Wave Optics
MHT CET 2026 · 25 April · Evening Shift · Physics · Wave Optics
Two images are considered "just resolved" according to Rayleigh's...
Two images are considered "just resolved" according to Rayleigh's criterion when
Options
- Athe central maxima of the diffraction pattern of two sources nearly overlap.
- Bthe first minimum of the diffraction pattern of one source coincides with the central maximum of the diffraction pattern of other source.
- Cthe first minimum of the diffraction pattern of one source coincides with the first secondary maximum of the diffraction pattern of the other source.
- Dthe first minimum of the diffraction pattern of one source is far from the central maximum of diffraction pattern of the other source.
Correct answer
B. the first minimum of the diffraction pattern of one source coincides with the central maximum of the diffraction pattern of other source.
Step-by-step solution
According to Rayleigh's criterion for resolution, two point sources are considered to be just resolved if the central maximum of the diffraction pattern of one source coincides with the first minimum of the diffraction pattern of the other source.
This ensures that the dip in intensity between the two central maxima is just sufficient for the two images to be distinguished as separate.
Answer: the first minimum of the diffraction pattern of one source coincides with the central maximum of the diffraction pattern of other source.
This ensures that the dip in intensity between the two central maxima is just sufficient for the two images to be distinguished as separate.
Answer: the first minimum of the diffraction pattern of one source coincides with the central maximum of the diffraction pattern of other source.