A Laser Used in DVD Players Has a Wavelength of 405

question 106

Multiple Choice

A laser used in DVD players has a wavelength of 405 nm. What is the frequency of this light in hertz (s⁻¹) ?

• A)7.41 × 10⁵ s⁻¹
• B)7.41 × 10¹⁴ s⁻¹
• C)1.35 × 10^-6 s⁻¹
• D)1.35 × 10^-13 s⁻¹
• E)1.22 × 10² s⁻¹

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Definitions:

Performing Arts Theater

A venue dedicated to hosting live performances, such as plays, musicals, and concerts, by artists and performers.

Price Elasticity of Demand

A measure of how much the quantity demanded of a good responds to a change in its price.

Complementary Good

A product that is used together with another product, increasing demand for both when the price of one decreases.

Inferior Good

A type of good whose demand decreases when consumers' incomes increase, opposite to normal goods.