In a Double-Slit Experiment,the Slit Separation Is 2

question 22

Multiple Choice

In a double-slit experiment,the slit separation is 2.0 mm,and two wavelengths,750 nm and 900 nm,illuminate the slits simultaneously.A screen is placed 2.0 m from the slits.At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other?

• A) 1.5 mm
• B) 3.0 mm
• C) 4.5 mm
• D) 6.0 mm
• E) 9.0 mm

---

Definitions:

Natural Killer Cells

A type of lymphocyte (white blood cell) that plays a major role in the rejection of tumors and cells infected by viruses.

Interferons

A group of signaling proteins made and released by host cells in response to the presence of pathogens, such as viruses, bacteria, or tumor cells.

Antigen-Presenting Cells

Cells that process and present antigens to T-cells to initiate an immune response.

Major Histocompatibility Complex

Major Histocompatibility Complex is a set of genes that code for proteins on the cell surface, which help the immune system recognize foreign substances.