A Parallel Beam of Monochromatic Light Is Incident on a Slit

question 59

Multiple Choice

A parallel beam of monochromatic light is incident on a slit of width 2 cm. The light passing through the slit falls on a screen 2 m away. As the slit width is decreased:

• A) the width of the pattern on the screen continuously decreases
• B) the width of the pattern on the screen at first decreases but then increases
• C) the width of the pattern on the screen increases and then decreases
• D) the width of the pattern on the screen remains the same
• E) the pattern on the screen changes color going from red to blue

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Definitions:

Correlation Coefficient

A numerical indicator that shows how much two or more variables move in unison.

Descriptive Research

A type of research that aims to observe, describe, and document aspects of a situation as it naturally occurs.

Research Methods

Systematic strategies, techniques, and approaches used to conduct scientific investigations and gather empirical data.

Psychological Perspectives

General points of view used for explaining people’s behavior and thinking, whether normal or abnormal.