No Fringes Are Seen in a Single-Slit Diffraction Pattern If

question 49

Multiple Choice

No fringes are seen in a single-slit diffraction pattern if:

• A)the screen is far away
• B)the wavelength is less than the slit width
• C)the wavelength is greater than the slit width
• D)the wavelength is less than the distance to the screen
• E)the distance to the screen is greater than the slit width

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Definitions:

Selection

In evolutionary biology, a process by which certain traits become more or less common in a population due to the differential reproductive success of organisms with those traits.

Antigenic Drift

Describes natural selection on seasonal influenza viruses that alters the structure of surface proteins, allowing them to evade the antibody-mediated immunity induced during previous infections or vaccinations.

Flu Vaccine

A vaccination that protects against the influenza virus, redeveloped each year to combat the seasonally evolving strains.

Resistance

Resistance refers to the capacity of pathogens to defend against antibiotics or other drugs.