Organic Light Emitting Diodes (OLEDs) are used to create digital displays in many devices. What are the advantages of OLED displays over Liquid Crystal displays? 1. OLED displays can be fabricated on flexible plastic substrates. 2. Roll-up displays embedded in clothing can be made using OLEDs. 3. Transparent displays are possible using OLEDs. Select the correct answer using the code given below:

In which one of the following devices, the light energy is converted into the electrical energy?

In photoelectric effect, photoelectric Einstein's equation is E = hν − φ. I. φ represents work function metal. II. The electrons will not be emitted if hν < φ. III. The increasing intensity of fallin…

Which of the following photoelectric devices is most suitable for digital applications?

Solar cell is a device that converts light energy into electrical energy. We obtain the highest output of energy during noon when the sun is just above our head, because

Which of the following statements is correct? As the temperature increases,