PRACTICE EXERCISE NO.1

DIRECTIONS: Identify its energy using the numerals from 1-7. Wherein 1 is shortest and 7 is the longest.

VISIBLE LIGHT	WAVELENGTH	ENERGY(eV)
RED	700-635 nm
ORANGE	635-590 nm
YELLOW	590-550 nm
GREEN	550-520 nm
BLUE	520-490 nm
INDIGO	490-450 nm
VIOLET	450-400 nm

1. What is the wavelength level of red? ____ In addition its energy level? ____

2. What is the wavelength level of violet? ____In addition its energy level? ____

3. Based on your answer, what is the relation of wavelength with energy? _____

PRACTICE EXERCISE NO.2

Directions: Identify its energy using the numerals from 1-7. Wherein 1 is lowest level and 7 is the highest level.

VISIBLE LIGHT	FREQUENCY	ENERGY(eV)
RED	430-480 THz
ORANGE	480-510 THz
YELLOW	510-540 THz
GREEN	540-580 THz
BLUE	580-610 THz
INDIGO	610-670 THz
VIOLET	670-750 THz

1. What is the frequency level of red? In addition, its energy level?

2. What is the frequency level of violet? In addition, its energy level?

3. Based on your answer, what is the relation of frequency with energy?