An atom of silicon has 14 electrons around the nucleus. Out of these 14, four are valence electrons. The atoms of the best semiconductors have... View Article
Lead is a well-suited material for blocking x-rays and gamma rays. Lead has a high atomic number that makes it suitable for blocking radiation.... View Article
Lead sulfide is also known as galena is an important compound of lead. It was one of the earliest materials used as semiconductors as it... View Article
The alpha rays and beta rays get deflected by the electric field. Alpha rays are positively charged and beta rays are negatively charged. The... View Article
Diamond is a thermal conductor and an electrical insulator. They have a large bandgap and do not have any free electrons for conducting electricity.... View Article
When a DC voltage is connected to the primary of the transformer, the constant current produces a constant flux. The EMF induced will be zero in... View Article
According to Newton's second law of motion, acceleration is inversely proportional to the mass when the force is a constant. The acceleration is... View Article
The major difference between static electricity and current electricity is that in static electricity the charges are at rest and get accumulated... View Article
What actually kills a person is current and not the voltage. The current that can pass through the body depends on the voltage. Therefore high... View Article
The efficiency of the heat engine cannot be 100%. The efficiency is given as Efficiency =1 - (T2/T1) T2 is the temperature of the sink T1 is... View Article
Electromagnetic shielding is the process of using conductive or magnetic materials to block electromagnetic fields. The materials used for... View Article
The angular momentum of a body in translatory motion is zero only when the origin is along the direction of motion of the particle. Otherwise, a... View Article
The phenomenon of x-ray production is considered to be the inverse of the photoelectric effect. The photoelectric effect is when a high energy... View Article
Sound is a mechanical wave and requires a material medium for propagation. There is nothing in space. There is no atmosphere. Even if the... View Article
The pendulum stops eventually because of air resistance. The pendulum loses energy because of friction. Only in a theoretical situation when... View Article
Hooke’s law governs the elastic behaviour of the spring. According to the principle of Hooke's law, the force required to expand or compress the... View Article
December 23rd, 2020, PIB:- Download PDF Here TABLE OF CONTENTS 1. CoWIN 2. Department of Fisheries 3. International Science Literature Festival... View Article
Urban Flooding is an inundation of land in a constructed setting, particularly in densely populated areas. It happens when rainfall or allied... View Article
