What is the nature of a real image? Nature of Image Real Image Virtual Image “1. A real image is formed when two or more reflected rays meet at a point in front of the mirror.” “1. A virtual image is formed when two or more rays appear to be coming from a point behind […]
What happens when intensity is doubled?
What happens when intensity is doubled? Any change in the energy of the photons will not change the intensity. So if intensity is doubled, the no. of photons incident on the surface will be doubled and as a result more photoelectrons will be ejected. What is the value of maximum usable frequency when the incident […]
At what altitude do you become weightless?
At what altitude do you become weightless? Any object that is falling freely is weightless, no matter where it happens to be. This can be the International Space Station at a height of 200 miles, a NASA reduced-gravity airplane at a height of several thousand feet, a drop tower at several hundred feet, or you […]
What are two disadvantages of forced air heating systems?
What are two disadvantages of forced air heating systems? Maintenance incudes duct cleaning and repair, preventive HVAC service and changing air filters. Forced air heating systems also tend to be noisy as sound travels through the vents. With a forced air heating system, a lot more dust and debris get blown around in the rooms. […]
Is a car driving fast potential energy?
Is a car driving fast potential energy? The kinetic energy of an object is the energy or force that the object has due to its motion. Your moving vehicle has kinetic energy; as you increase your vehicle’s speed, your vehicle’s kinetic energy increases. Is driving a car potential energy? The moving car has kinetic energy, […]
What is the 80/20 rule for losing weight?
What is the 80/20 rule for losing weight? What is the 80/20 diet? In “The 80/20 Diet,” Australian nutritionist, chef, and personal trainer Teresa Cutter writes that you can lose weight if you eat nutritiously 80 percent of the time and allow yourself to indulge in less healthy food for the remaining 20 percent of […]
Does a force meter measure weight?
Does a force meter measure weight? The weight of something (or someone) is the force caused by the pull of gravity on the mass of something (or someone). Weight is measured in Newtons (N) and is named after Sir Isaac Newton, who discovered gravity. A force meter (or Newton meter) is used to measure weight. […]
What is the formula for input work?
What is eruption of volcano?
What is eruption of volcano? Definition: A volcanic eruption occurs when magma is released from a volcano. Volcanic eruptions can be quite calm and effusive, or they can be explosive. Effusive eruptions produce lava flows, while explosive eruptions produce ash and pyroclastic density currents. Volcanic Eruption. What is a volcano short answer? A volcano is […]
What organs help the digestive system?
What organs help the digestive system? The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. Helping them along the way are the pancreas, gall bladder and liver. Here’s how these organs work together in your digestive system. Which […]