Single-Slit Diffraction: a Laser Beam Passes Through a Thin Slit

question 77

Multiple Choice

Single-slit diffraction: A laser beam passes through a thin slit. When the pattern is viewed on a screen 1.25 m past the slit, you observe that the fifth-order dark fringes occur at ±2.41 cm from the central bright fringe. The entire experiment is now performed within a liquid, and you observe that each of the fifth-order dark fringes is 0.790 cm closer to the central fringe than it was in air. What is the index of refraction of this liquid?

• A) 1.33
• B) 1.40
• C) 1.49
• D) 1.62
• E) 3.05

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Definitions:

Jean-Paul Sartre

A French existentialist philosopher, playwright, and novelist known for his exploration of freedom, existentialism, and the absurd.

Erich Fromm

A German social psychologist, psychoanalyst, sociologist, and humanistic philosopher known for his theories on the tethers of freedom.

Escape From Freedom

A concept referring to the evasion of personal responsibility that leads individuals to seek refuge in authoritarian systems.

Determinism

Determinism is the philosophical theory that all events, including moral choices, are completely determined by previously existing causes.