JEE Main 2008
- Exam
- JEE Main
- Year
- 2008
- Subject
- Physics
- Chapter
- Dual Nature of Matter
JEE Main 2008 · Physics · Dual Nature of Matter
Paragraph: Wave property of electrons implies that they will show...
Paragraph:
Wave property of electrons implies that they will show diffraction effects. Davisson and Germer demonstrated this by diffracting electrons from crystals. The law governing the diffraction from a crystal is obtained by requiring that electron waves reflected from the planes of atoms in a crystal interfere constructively (see in figure).
Question: In an experiment, electrons are made to pass through a narrow slit of width 'd' comparable to their de Broglie wavelength. They are detected on a screen at a distance ' ' from the slit (see figure).
Which of the following graph can be expected to represent the number of electrons ' ' detected as a function of the detector position ' ' corresponds to the middle of the slit)?
Question: In an experiment, electrons are made to pass through a narrow slit of width 'd' comparable to their de Broglie wavelength. They are detected on a screen at a distance ' ' from the slit (see figure).
Which of the following graph can be expected to represent the number of electrons ' ' detected as a function of the detector position ' ' corresponds to the middle of the slit)?
Options
- A
- B
- C
- D
Correct answer
D.
Step-by-step solution
Diffraction pattern will be wider than the slit.