Category: Physics

What is P-type semiconductor with example? A p-type semiconductor is a type of semiconductor. When the trivalent impurity is added to an intrinsic or pure semiconductor (silicon or germanium), it is said to be a p-type semiconductor. Trivalent impurities such as boron (B), gallium (Ga), indium (In), aluminium (Al) etc. are called acceptor impurity. Is […]

What is temperature really a measure of? Temperature is a measure of the average kinetic energy of the particles in an object. When temperature increases, the motion of these particles also increases. It’s not a terrible definition, but it’s not the best either. What is the difference between temperature and energy? Thinking about the learning […]

Which country has the smallest carbon footprint? Tuvalu What industry is the biggest polluter in the world? According to the report, fashion is responsible for 92 million tons of solid waste per year globally, representing 4% of the 2.12 billion tons of waste we dump globally each year. That is more than toxic e-waste and […]

Is leaning forward while sitting bad for your back? Simply put, leaning forward in an attempt to get closer to the computer screen increases the strain on the back, which may cause wear and tear on the joint surfaces, ligaments, and discs. The back muscles are continuously working to maintain the body in an upright […]

Which type of mirror can form a real image? Solution: Concave mirrors can form real images. Convex and plane mirrors always form virtual images. Want to top your science exam ? How important is plane mirror to you? Plane mirror reflections create upright virtual images at the same magnification, or size, and distance as the […]

Is it safe to link bank account to venmo? Venmo’s link to your bank and/or credit card account is what enables payments to be sent from person to person. Through their API and concealing of private data, Venmo is able to provide a seemingly safe and secure platform for users to send and receive cash. […]

Can old bananas make you sick? Most of us tend to throw away overripe bananas, fearing they would no longer be fresh, and therefore, not fit to eat. Although overripe bananas may not really look very appetising–the fruit turns soggy while the banana peel may turn black or brown–they are very good for our health. […]

What happens if the car makes a sharp turn the passenger tend to move to one side of the car why? Explanation: It is inertia that causes the passengers to move toward the right side of the car. As the car swerves to left, passengers’ body continues their motion as hitherto and as such it […]

Does tangential speed increase with radius? It increases because tangential velocity is directly proportional to the radius. It increases because tangential velocity is inversely proportional to the radius. Does tangential speed increase with mass? There is a tangential component to the tension, constantly increasing, which serves to speed up the rotation of the mass. Is […]

Is Earth losing its magnetic field? Reversals occur nearly randomly in time, with intervals between reversals ranging from less than 0.1 million years to as much as 50 million years. The most recent geomagnetic reversal, called the Brunhes–Matuyama reversal, occurred about 780,000 years ago. Where is Earth’s magnetic field strongest? magnetic north pole Can humans […]