A Two-Slit Apparatus Is Illuminated with Red Light of Wavelength

question 36

Multiple Choice

A two-slit apparatus is illuminated with red light of wavelength 660 nm, and 9 interference maxima are observed within the 4.5 cm-wide central diffraction maximum on a distant screen. If blue light of wavelength 440 nm is used instead, how many fringes will there be in the new central diffraction maximum?

• A) 3
• B) 13
• C) 9
• D) 6

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Definitions:

Charles Darwin

A 19th-century naturalist and geologist, best known for his contributions to the science of evolution by proposing the theory of natural selection.

Adaptive Behavior

The collection of conceptual, social, and practical skills that individuals have developed to function in their everyday lives.

Biologically Determined

Traits, characteristics, or behaviors that are shaped by genetic makeup rather than environmental factors.

Conditioned

Having developed a particular response to a stimulus in the environment through conditioning, a form of learning.