How Many Joules of Energy Does a Photon Have with a Frequency

question 178

Multiple Choice

How many joules of energy does a photon have with a frequency of 6.8 * 10¹⁵ Hz?

• A) 4.5 * 10²⁸
• B) 5.6 * 10^-18
• C) 4.5 *10^-19
• D) 5.6 *10^-19
• E) 4.5 * 10^-23

Identify common sleep disorders and their characteristics.

Explain the effects of sleep deprivation on mood, performance, and alertness.

Understand the devices used in sleep research and their purposes.

Recognize the variations in sleep needs across different age groups and genders.