Photo resistor is also known as _________

Photo resistor is also known as _________
| Photo resistor is also known as _________

A. VDR

B. LED

C. LDR

D. RTD

Please scroll down to see the correct answer and solution guide.

Right Answer is: C

SOLUTION

Photo resistor is also known as LDR (Light Dependent Resistor)

It has property that its resistance value decrease on the incidence of light rays on it and thus the magnitude of current flowing through it is increased.

The resistance of the Light Dependent Resistor (LDR) varies according to the amount of light that falls on it.

LDR (Light dependent Resistor) is used to measure the intensity of light.