Electromagnetic Radiation with a Wavelength of 575 Nm Appears as Yellow

question 94

Multiple Choice

Electromagnetic radiation with a wavelength of 575 nm appears as yellow light to the human eye.The energy of one photon of this light is 3.46 × 10^-19 J.Thus,a laser that emits 1.3 × 10^-2 J of energy in a pulse of light at this wavelength produces ________ photons in each pulse.

• A) 2.7 × 10^-17
• B) 7.8 × 10^-24
• C) 2.2 × 10¹⁹
• D) 3.8 × 10¹⁶
• E) 6.5 × 10¹³

---

Definitions:

Other-Race Effect

The tendency to more easily recognize faces of the race that one is most familiar with (also known as cross-race effect or own-race bias).

Recognition

The process of identifying something or someone previously seen, known, or experienced.

Social Changes

Alterations in the social structure, patterns, and behavior of a society over time.

System Justification

System Justification is a theory in social psychology that describes the tendency of people to justify and defend the status quo, even if it is at odds with their own interests or fairness.