to the instructor.
Photonics Practice Sheet
Question 1
What is the definition of Photonics?
A. The study of light and its properties
B. The study of electricity and its properties
C. The study of optics and its properties
D. The study of electronics and its properties
Question 2
Which of the following is a type of photonic device?
A. Laser
B. Transistor
C. Resistor
D. Capacitor
Question 3
What is the purpose of a photonic device?
A. To provide power
B. To store energy
C. To transmit information
D. To measure voltage
Question 4
What is the difference between a light emitting diode (LED) and a laser diode?
A. LED emits light in all directions, while laser emits light in a single direction
B. LED emits light of a single wavelength, while laser emits light of multiple wavelengths
C. LED emits light of multiple wavelengths, while laser emits light of a single wavelength
D. LED emits light in a single direction, while laser emits light in all directions
Question 5
What is the difference between a photodiode and a phototransistor?
A. A photodiode is a device that converts light into electricity, while a phototransistor is a device that converts electricity into light
B. A photodiode is a device that converts electricity into light, while a phototransistor is a device that converts light into electricity
C. A photodiode is a device that amplifies light, while a phototransistor is a device that amplifies electricity
D. A photodiode is a device that amplifies electricity, while a phototransistor is a device that amplifies light
Answers Key
Question 1: A. The study of light and its properties
Question 2: A. Laser
Question 3: C. To transmit information
Question 4: A. LED emits light in all directions, while laser emits light in a single direction
Question 5: B. A photodiode is a device that converts electricity into light, while a phototransistor is a device that converts light into electricity