When the Surface of a Metal Is Exposed to Blue

question 59

Multiple Choice

When the surface of a metal is exposed to blue light,electrons are emitted.If the intensity of the blue light is increased,which of the following things will also increase?

• A)the number of electrons ejected per second
• B)the maximum kinetic energy of the ejected electrons
• C)the time lag between the onset of the absorption of light and the ejection of electrons
• D)the work function of the metal
• E)all of the above

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Definitions:

Marginal Revenue

The increase in revenue that results from the sale of one additional unit of product.

Profit-maximizing Output

The level of production at which a company achieves the highest possible profit.

Marginal Cost

The rise in overall expenses resulting from the production of an additional unit.

Marginal Revenue

The additional income from selling one more unit of a good; it is the change in total revenue from an additional unit sold.