A Light Beam Shines Through a Thin Slit and Illuminates

question 45

Multiple Choice

A light beam shines through a thin slit and illuminates a distant screen.The central bright fringe on the screen is 1.00 cm wide,as measured between the dark fringes that border it on either side.Which of the following actions would decrease the width of the central bright fringe? (There may be more than one correct choice.)

• A) increase the wavelength of the light
• B) decrease the wavelength of the light
• C) increase the width of the slit
• D) decrease the width of the slit
• E) put the apparatus all under water

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Definitions:

Construct Validity

The extent to which a test measures what it claims to measure, assessing the accuracy of an instrument or experiment.

Conceptual Replication

The process of conducting a study with different methods or measures than the original to validate the same underlying concept or hypothesis.

Direct Replication

The process of conducting a study with the same methodology and under the same conditions as a previous study to verify its results.

Meta-analysis

is a statistical technique that combines the results of multiple scientific studies to arrive at a comprehensive conclusion.