What percentage of donors are ionized at T 300k? In an n-type semiconductor 25% of the donor atoms are ionized at 300 K. Determine the location of the Fermi level with respect to the donor level. As 25% of donor atoms are ionized, the occupation probability of donor level is 0.75. Thus Page 9 Solving, […]
Which is the safest method of waste disposal among the following?
Which is the safest method of waste disposal among the following? The best methods of safe disposal are segregation and composting. After segregating the waste and separating materials for reuse and recycling, the waste material should be disposed of. Care must be taken that waste disposal does not pollute the air, groundwater, surface water and […]
Does soundproof foam really work?
Does soundproof foam really work? This misconception is incredibly common – so if you are reading this thinking to yourself, “So, does sound-absorbing foam work? Isn’t foam used for soundproofing a room?” Unfortunately not. Foam doesn’t stop a sound, it absorbs or reduces echo within the room. How much does soundproof foam cost? Soundproofing Walls […]
Where is bad ozone found?
Where is bad ozone found? troposphere Can ozone kill fungus? An ozone level of 0.4 ppm for 4 minutes has been shown to kill any bacteria, virus, mold and fungus. 1 parts per million is equivalent to: 8.345 pounds per million gallons (US). Mold and mildew are easily controlled by Ozone present in air and […]
Which of the following is an example of static equilibrium?
Which of the following is an example of static equilibrium? A child’s seesaw, shown in, is an example of static equilibrium. An object in static equilibrium is one that has no acceleration in any direction. While there might be motion, such motion is constant. Two children on a seesaw: The system is in static equilibrium, […]
What are the first 20 compounds?
What are the first 20 compounds? Compounds with their chemical formulae Explanation: Compound name – Chemical formula. 1). Acetate – 2). Acetic Acid – 3). Ammonia – 4). Sodium Phosphate – 5). Calcium carbonate – 6). Carbonic Acid – What are the 10 examples of mixtures? Here are a few more examples: Smoke and fog […]
What is Newton disc explain with diagram?
What is Newton disc explain with diagram? Newton’s colour disc – example Newton’s colour disc is a disc on which seven component colours of white light are painted. As it is rotated at high speed, it appears white suggesting the white light comprises of seven colours. What can you demonstrate by rotating Newton’s Colour disc […]
What is the most dangerous thing to humans?
What is the most dangerous thing to humans? Of all the species in the world, the largest—and most dangerous—is the saltwater crocodile. These ferocious killers can grow up to 23 feet in length, weigh more than a ton, and are known to kill hundreds each year, with crocodiles as a whole responsible for more human […]
What is the connotative of noisy?
What is the biggest difference between geocentric model and heliocentric model?
What is the biggest difference between geocentric model and heliocentric model? The geocentric model says that the earth is at the center of the cosmos or universe, and the planets, the sun and the moon, and the stars circles around it. The early heliocentric models consider the sun as the center, and the planets revolve […]