Related InterviewSolutions

• The light emitted in an LED is due to- (a) Recombination of charge carriers (b) Reflection of light due to lens action (c) Amplification of light falling at the junction.
• Mention the factor which determines the (i) frequency and (ii) intensity of light emitted by LED. 
• What is an extrinsic semiconductor? 
• Doping a semiconductor results in (a) The decrease in mobile charge carriers (b) The change in chemical properties (c) The change in the crystal structure (d) The breaking of the covalent bond
• What do you mean by doping?
• What are extrinsic semiconductor?
• Which type of gate is represented by the given figure?(a) NAND (b) NOT (c) AND (d) OR.
• Rectification is the process of conversion of (a) a.c into d.c (b) low a.c into high a.c (c) d.c into a.c (d) low d.c into high d.c
• Holes are charge carrier in (a) intrinsic semiconductors (b) ionic solids (c) p-type semiconductor (d) metals.
• The major carrier of current in a p-type semiconductor will be. (a) neutrons (b) protons(c) electrons (d) holes.