A Single Slit,1400 Nm Wide,forms a Diffraction Pattern When Illuminated

question 20

Multiple Choice

A single slit,1400 nm wide,forms a diffraction pattern when illuminated by monochromatic light of 490 nm wavelength.The largest angle from the central maximum at which the intensity is zero is closest to:

• A)44°
• B)41°
• C)38°
• D)35°
• E)32°

---

Definitions:

Heavier Objects

Objects with greater mass or weight compared to other items in their comparison set.

Weber's Law

A principle in psychology stating that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus.

Afterimage

An afterimage is a visual impression that persists as a negative or positive image on the retina after the stimulus that caused it is no longer present.

Red Square

A famous city square in Moscow, Russia, known for its historical buildings and for being a symbolic center of the Russian government.