Electromagnetic Radiation with a Frequency of 8 $\varPhi$ = 35 -10^-19 J)
B)gold

question 34

Multiple Choice

Electromagnetic radiation with a frequency of 8.6* 10¹⁴ Hz incident on an unknown metal surface causes the ejection of photoelectrons with kinetic energies of 2.8 *10^-19 J.What is the unknown metal?

• A)rubidium (\(\varPhi\) = 3.5 -10^-19 J)
• B)gold (\(\varPhi\)= 8.2 * 10^-19 J)
• C)nickel (\(\varPhi\) = 8.3 *10^-19 J)
• D)sodium (\(\varPhi\)= 2.9 * 10^-19 J)
• E)platinum (\(\varPhi\) = 9.1 *10^-19 J)

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Definitions:

Quick Ratio

A measure of liquidity similar to the current ratio except for exclusion of inventories. It equals cash plus receivables divided by current liabilities.

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A statistical measure that represents the central tendency or typical value of a set of figures in a particular industry, often used for benchmarking.

Insolvency

The state in which an individual or entity cannot meet its financial obligations as debts become due.

Working Capital

The difference between a company's current assets and current liabilities, indicating the liquidity of a business.