What are the types of LDR? Light dependent resistors, LDRs or photoresistors fall into one of two types or categories: Intrinsic photoresistors: Intrinsic photoresistors use un-doped semiconductor materials including silicon or germanium. What is the purpose of LDR? An LDR is a component that has a (variable) resistance that changes with the light intensity that […]
What proves light is a particle?
What proves light is a particle? Light behaves mainly like a wave but it can also be considered to consist of tiny packages of energy called photons. Then Max Planck and others were studying the photoelectric effect and they found that certain types of metal and other materials will eject electrons when light shines on […]
What is the relationship between absorbance and concentration?
What is the relationship between absorbance and concentration? One factor that influences the absorbance of a sample is the concentration (c). The expectation would be that, as the concentration goes up, more radiation is absorbed and the absorbance goes up. Therefore, the absorbance is directly proportional to the concentration. How do you calculate absorbance from […]
Can electrons travel through air?
Can electrons travel through air? In order to create an electrical current, electrons must be ripped off of the air molecules so that they are free to move and form a current. Rather, air displays a complex relationship between the applied voltage and the resulting electrical current traveling through the air. Can current flow in […]
Why do plants and animals depends on each other?
Why do plants and animals depends on each other? Complete Answer: A. Plants and animals depend on each other because in the ecological systems present on earth, it is impossible for any species to survive alone. Similarly, plants depend on animals for reasons like dispersal of fruits and seeds, pollination, and for the carbon dioxide […]
Who signs contract first buyer or seller?
Who signs contract first buyer or seller? Once a real estate seller and buyer agree to terms, the seller normally signs a real estate purchase agreement or sales contract. Real estate buyers are generally expected to sign purchase agreements first, though, especially during offer and counteroffer phases. What is a deed consideration? Consideration is a […]
What substance dissolves most?
What substance dissolves most? Water What type of substance that can be dissolved? solutes What are the 10 examples of solute? Solute Examples Solute Solution Type of Solution Salt Seawater Solid dissolved in liquid Sugar, dissolved carbon dioxide Soda Solid and gas dissolved in liquid Oxygen, water vapor, carbon dioxide, argon Air Gas dissolved in […]
What can exposure to high noise levels cause?
What can exposure to high noise levels cause? Exposure to high levels of noise can cause permanent hearing loss. Neither surgery nor a hearing aid can help correct this type of hearing loss. Short term exposure to loud noise can also cause a temporary change in hearing (your ears may feel stuffed up) or a […]
When was heliocentric accepted?
When was heliocentric accepted? Jan What was Ptolemy theory? The Ptolemaic system was a geocentric system that postulated that the apparently irregular paths of the Sun, Moon, and planets were actually a combination of several regular circular motions seen in perspective from a stationary Earth. Who was the first White Pharaoh? Ptolemy I Soter, (born […]
Why past Cannot be changed?
Why past Cannot be changed? The past cannot be changed, the future is still in your power. Can God change the past? God can change the past, the present and the future. Nothing is beyond the Supreme Lord. He can change history and He can make history. In the Bhagavad Gita (BG), Lord Krishna says, […]