A Light Source Simultaneously Emits Light of Two Wavelengths,480 Nm

question 22

Multiple Choice

A light source simultaneously emits light of two wavelengths,480 nm and 560 nm,respectively.The source is used in a double-slit interference experiment where the slit spacing is a 0.040 mm,and the distance between double slits and the screen is 1.2 m.What is the separation between the second-order bright fringes of the two wavelengths as they appear on the screen? (1 nm = 10^-9 m)

• A)0.16 cm
• B)0.32 cm
• C)0.48 cm
• D)0.64 cm

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Definitions:

Credit Sales

Transactions involving the transfer of goods or services to a customer with the agreement that payment will be made at a later date.

Uncollectible Accounts

Debts owed to a company that are considered unlikely to be paid by the debtor, often resulting in a write-off for the creditor.

Adjusting Entry

Journal entries made in accounting records at the end of an accounting period to allocate income and expenditures to the period in which they actually occurred.

Percentage of Sales Method

A financial forecasting model that bases future variables, like expenses and income, on a percentage of sales.