Internet of Things using Arduino
Q1. The color code of red is:
a.(255, 255, 0)
b.(255, 0, 255)
c.(255, 0, 0)
d.(0, 255, 0)
Q2. Which type of LED emits a single color of light?
a. Monochromatic LED
b. Multicolor LED
c. RGB LED
d. White LED
Q3. What is the purpose of using an RGB LED?
a. To emit only white light
b. To emit a single color of light
c. To emit infrared light
d. To emit multiple colors of light
Q4. Pulse Width Modulation (PWM) is a technique for getting:
a. Digital results in digital means
b. None of these
c. Analog results in Analog means
d. Analog results in digital means
Q5. How many colors can RGB LED produce:
a. 18.7 million
b. 16.7 million
c. 17.6 million
d. 16.5 million