LDR sensor

What is the use of the LDR Sensor?

• Monitors Motion

• Monitors air pressure

• Monitors Light Intensity

• Monitors heartbeat

How many pins are present in the LDR Sensor?

• 1

• 2

• 4

• 5

What is the full form of the LDR Sensor?

• Lithium Diode Resistor

• Light Diaphragm Resistor

• Lithium Disk Resistor

• Light Dependent Resistor

What will happen if we supply a voltage of 250 kV to the terminal of the LDR Sensor?

• Damage is caused

• Module will shut down

• Module will not respond for the time the voltage is applied

• Module will function normally

Which one of the following materials would be used for making an LDR?

• Sulfide

• Pure Aluminum

• Iron Ore

• Aluminum Oxide

If an LDR is connected to an LED and a battery and is brought from the dark to the light, what will be the state of the LED?

• Damaged by voltage change

• Damaged by power surge

• Light

• Not light

How much time on an average does the LDR take for it’s resistance to change when light is incident?

• 8 to 12 ms

• 12 min

• 30 s

• 354 hr

Do LDR’s respond to all wavelengths of light?

• Yes

• No

LDR's are also called _______________.

• Photo voltaic cell

• Photo Resistive cell

• Photo Emissive cell

• All of the above