The Diagram Below Shows a Light Curve from a Supernova

question 145

Multiple Choice

The diagram below shows a light curve from a supernova. How many days after maximum light did it take for the supernova to decrease in brightness by a factor of 100?

• A) less than 50
• B) 50
• C) 150
• D) 250
• E) more than 250

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Definitions:

Merchandise Purchase

Transactions related to buying goods for sale, typically finished goods, in a retail or wholesale setting.

Credit Terms

The conditions under which credit is extended by a seller to a buyer, detailing the repayment period, discount for early payment, and the annual interest rate if applicable.

Periodic Inventory Method

The periodic inventory method is an accounting approach where the inventory value is updated at specific intervals, relying on physical counts to determine cost of goods sold and ending inventory levels.

Voucher Payment

A method of paying bills where a record is kept of all invoices and payments.