Two Wavelengths, 800 Nm and 600 Nm, Are Used Separately

question 20

Multiple Choice

Two wavelengths, 800 nm and 600 nm, are used separately in single-slit diffraction experiments.The diagram shows the intensities on a far-away viewing screen as function of the angle made by the rays with the straight-ahead direction.If both wavelengths are then used simultaneously, which point corresponds to the smallest angle at which the light on the screen is purely 800-nm light?

• A)A
• B)B
• C)C
• D)D

Grasp the biological and psychological aspects of aging and their effects on cognition and physical health.

Identify and match various diagnostic and readiness tests with their primary assessment focus.

Understand the use of percentile and standard scores in comparing student performances.

Distinguish between tests focused on assessing specific content areas versus broad cognitive abilities.

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Definitions:

Labour Rate Variance

The difference between the actual cost of labour per hour and the standard cost that was expected, multiplied by the total hours worked.

Variable Overhead Efficiency Variance

The difference between the actual variable overhead incurred and the expected variable overhead based on standard costs for the actual production achieved.

Actual Direct Labour Rate

The actual cost per hour paid to workers for their labor.

Standard Labour Rate

The predetermined cost per hour of labor, used in budgeting and costing to estimate the labor costs associated with a product.