LED In Optical Fiber Quiz

What does LED stand for?

• Luminous Electric Device

• Light Emitting Device

• Laser Emitting Diode

• Light Emitting Diode

What is the purpose of an LED in optical fiber?

• To transmit sound signals

• To convert electrical signals into light signals

• To generate heat

• To convert light signals into electrical signals

How does an LED emit light?

• By reflecting light from other sources

• By emitting sound waves

• By absorbing energy from the environment

• By releasing energy in the form of photons when an electric current passes through the semiconductor material

What color of light does an LED emit?

• LEDs emit light in all colors

• LEDs emit light in a specific color

• LEDs emit infrared light

• LEDs emit ultraviolet light

Why is an LED used in optical fiber communication?

• Cost-effective and suitable for short-distance communication

• Expensive and suitable for long-distance communication

• Not durable and suitable for satellite communication

• Inefficient and suitable for underwater communication