Examlex
During the investigation of a new type of optical fiber having an index of refraction ) , a laser beam is aimed at the flat end of a straight fiber, as shown in the figure. What is the maximum angle of incidence if the beam is not to escape from the sides of the fiber if it is surrounded by air?
Control Group
In experimental research, the group of participants that does not receive the experimental treatment, used as a baseline to compare the effects of the treatment on the experimental group.
Confound
A variable that influences both the dependent and independent variables in an experiment, making it difficult to determine the exact effect of the independent variable.
Critical Thinking
Making reasoned judgments about claims.
Negative Correlation
Negative Correlation describes a relationship between two variables where as one variable increases, the other decreases, indicating an inverse association.
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