Which of the Following Lamp Types Require the Use of Phosphors

question 6

Multiple Choice

Which of the following lamp types require the use of phosphors to produce light?

• A) Metal halide
• B) Sodium vapor
• C) Incandescent
• D) Fluorescent

---

Definitions:

Contra Asset

An asset account where its balance is opposite of the normal balance, used to offset the balance of a related account, such as allowance for doubtful accounts offsetting accounts receivable.

Expense

An outflow of money to another person or company to pay for an item or service, or for a cost required to operate a business.

Allowance for Doubtful Accounts

A contra-asset account that estimates the portion of accounts receivable which may not be collectible.

Adjusted

Changed or modified to reflect a more accurate valuation or account of a particular item or financial record.