IR SENSOR

Question 1: What does "IR" stand for in IR sensor?

• Infrared Receiver
• Infrared
• Infrared Radiation
• Internal Reflection

Question 3: Which of the following is a common application of IR sensors?

• Analyzing chemical composition
• Detecting sound waves
• Motion detection
• Measuring humidity

Question 4: How do IR sensors detect objects or obstacles?

• By emitting and receiving infrared radiation
• By using visible light
• By using radio waves
• By using ultraviolet light

Question 10: Which of the following is a limitation of IR sensors?

• Limited detection of transparent or reflective surfaces
• Inability to detect small objects
• High cost of implementation
• Unlimited detection range

Question 5: In a typical IR remote control, how is data transmitted from the remote to the device?

• Radio waves
• Sound waves
• Ultraviolet light signals
• Infrared light signals

Question 6:What is the main advantage of using a reflective IR sensor over a transmissive one?

• Higher cost and complexity
• Easier installation and less maintenance
• Less accurate readings
• Limited range and sensitivity

Question 7:In healthcare, IR sensors are often used for what purpose?

• Measuring blood pressure and heart rate
• Diagnosing skin conditions and allergies
• Administering medication and performing surgeries
• Monitoring body temperature and detecting movement

Question 8:What role do IR sensors play in automotive applications?

• Controlling the radio volume
• Monitoring tire pressure
• Detecting objects, obstacles, and pedestrians
• Measuring temperature

Question 9:What type of component is commonly used to detect incoming infrared signals in an IR sensor?

• Infrared photodiode
• Visible light photodiode
• X-ray photodiode
• Ultraviolet photodiode

Question 10:In home automation, how are IR sensors commonly used?

• To control the temperature of the room
• To play music
• To detect motion, presence, and proximity for automatic control of devices
• To water the plants