How Many Times Greater Is the Speed of Red Light $\lambda$

question 74

Multiple Choice

How many times greater is the speed of red light ( $\lambda$ = 700 nm) than the speed of ultraviolet light ( $\lambda$ = 380 nm) in a vacuum?

• A) 1.84 , the first color of light is faster
• B) 0.54 , the second color of light is faster
• C) 3.00 x 10⁸ , the first color of light is faster
• D) 1.00 , both colors of light have the same speed
• E) 3.00 x 10⁸ , the second color of light is faster

---

Definitions:

Quality

The standard of something as measured against other similar things, often associated with excellence, durability, or the ability to meet specified requirements.

Value Of A Dollar

The purchasing power of the US dollar, indicating the amount of goods or services one can buy with one dollar at a given time.

Price Remains The Same

A condition where the cost of a good or service does not change over a period of time.

Substitution Bias

Substitution bias occurs in inflation measurement and refers to the tendency of consumers to change their purchasing habits away from goods that have increased in price to cheaper alternatives, which is not always fully captured by price indexes.