What is the source of this problem? I am studying LED characteristics. I found that yellow and blue LED has low voltages than red and green respectively. - Quora
![visible light - Is there any relation between turn on voltage of LED and the colour emitted? - Physics Stack Exchange visible light - Is there any relation between turn on voltage of LED and the colour emitted? - Physics Stack Exchange](https://i.stack.imgur.com/HJcxo.jpg)
visible light - Is there any relation between turn on voltage of LED and the colour emitted? - Physics Stack Exchange
![Different forward voltages of red-green-blue (RGB)LEDs under the same... | Download Scientific Diagram Different forward voltages of red-green-blue (RGB)LEDs under the same... | Download Scientific Diagram](https://www.researchgate.net/publication/325566660/figure/fig3/AS:634056391806976@1528182232002/Different-forward-voltages-of-red-green-blue-RGBLEDs-under-the-same-driving-current.png)
Different forward voltages of red-green-blue (RGB)LEDs under the same... | Download Scientific Diagram
![A light emitting diode (LED) has a voltage drop of 2V across it and passes a current of 10 mA. When it operates with a 6V battery through a limiting resistor R. A light emitting diode (LED) has a voltage drop of 2V across it and passes a current of 10 mA. When it operates with a 6V battery through a limiting resistor R.](https://d10lpgp6xz60nq.cloudfront.net/ss/web/287220.jpg)