Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:
A narrow slit is taken and a parallel beam of moving electrons is incident normally on it. At a larger distance from the slit, a fluorescent screen is placed. Which of the following statement is true if the size of the slit is further narrowed?
Options:
The diffraction pattern cannot be observed on the screen
The angular width of the central maxima of the diffraction pattern will increase
The angular width of the central maxima of the diffraction pattern will decrease
The angular width of the central maxima of the diffraction pattern remains the same
Correct Answer:
The angular width of the central maxima of the diffraction pattern will decrease
Explanation:
The angular width of the central maxima of the diffraction pattern will decrease.