A Diffraction Grating Has Rulings of 890 Lines/mm

question 18

Multiple Choice

A diffraction grating has rulings of 890 lines/mm.When white light is incident normally on the grating,what is the longest wavelength that forms an intensity maximum in the fifth order?

• A) 225 nm
• B) 200 nm
• C) 250 nm
• D) 275 nm
• E) 300 nm

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Definitions:

Scientific Approach

A method of inquiry that uses systematic, empirical, and objective methods to investigate phenomena, form hypotheses, and gather evidence to support or refute them.

Falsifiability

The principle that a good scientific idea or theory should be capable of being shown to be false when tested using scientific methods.

Empiricism

Use of objective observations to answer a question about the nature of behavior.

Empirical Evidence

Evidence that is based on observation, experience, or experiment, rather than theory or pure logic.