For Us to See Interference Phenomena in a Thin Film

question 85

Multiple Choice

For us to see interference phenomena in a thin film,

• A)the incoming light must be monochromatic.
• B)the index of refraction of the thin film must be greater than the index of refraction of the material below it.
• C)the index of refraction of the thin film must be less than the index of refraction of the material below it.
• D)the incoming light must be multicolored.
• E)none of these conditions need exist

---

Definitions:

Par Value

The nominal or face value of a stock or bond as stated by the issuer, which does not necessarily reflect its market value.

Cumulative Preferred Stock

A type of preferred stock where dividends accumulate if not paid, with all past unpaid dividends required to be paid out before any dividends can go to common stockholders.

Common Stock

Equity securities that represent ownership shares in a corporation, giving holders voting rights and potential dividends but with no fixed dividend rate.

Dividend

A portion of a company's earnings that is paid to shareholders, typically on a quarterly basis, as a reward for investing in the company.