What is the Tyndall effect example? When a beam of light is directed at a glass of milk, the light is scattered. This is a great example of the Tyndall effect. When a torch is switched on in a foggy environment, the path of the light becomes visible. In this scenario, the water droplets in […]
Is a leaf falling from a tree free fall?
Is a leaf falling from a tree free fall? Since gravity causes objects to accelerate downward, whereas air resistance acts in the direction opposite to the motion and reduces acceleration. Thus, leaf will not fall straight, it would drift back and forth until it reaches ground. Aakash EduTech Pvt. What happens to two coins that […]
How many types of FTIR are there?
How many types of FTIR are there? There are four major sampling techniques in FTIR: Transmission. Attenuated Total Reflection (ATR) Specular Reflection. Which detector is used in FTIR? FTIR transmission spectra (single beam spectra) are collected at a resolution of 2 cm−1 using liquid nitrogen-cooled detectors. For ferrous NO samples, spectra are taken with a […]
What do 3 short blasts of a boat horn mean?
What do 3 short blasts of a boat horn mean? I am operating astern propulsion Which of these anchors is a good choice for most recreational boats? Danforth What should u do first when a vessel capsizes? If You Capsize, Swamp, or Fall Overboard If you made the mistake of not wearing a lifejacket or […]
How hot do power lines get?
How hot do power lines get? Power lines around the World are designed to operate at 75°C – 90°C (Joule’s effect on the cable resistance). That’s enough to produce slow evaporation of rainwater, for example. Why do birds not fall out of trees when they sleep? Both stretch over the ankle, and when the bird […]
What problem did the Rutherford atomic model have that Bohr solved?
What problem did the Rutherford atomic model have that Bohr solved? To remedy the stability problem, Bohr modified the Rutherford model by requiring that the electrons move in orbits of fixed size and energy. The energy of an electron depends on the size of the orbit and is lower for smaller orbits. Radiation can occur […]
What do you understand by state of a system and state variables?
What do you understand by state of a system and state variables? A state variable is one of the set of variables that are used to describe the mathematical “state” of a dynamical system. Intuitively, the state of a system describes enough about the system to determine its future behaviour in the absence of any […]
What happened to the distance between two straight conductor carrying current in the same direction?
What happened to the distance between two straight conductor carrying current in the same direction? The force acting on one wire due to currents through two wires is inversely proportional to the distance between them. Thus the force becomes 1/2 times if the distance between the wires is doubled. When a coil carrying current is […]
Is calcium a covalent or ionic bond?
Is calcium a covalent or ionic bond? Calcium carbonate is another example of a compound with both ionic and covalent bonds. Here calcium acts as the cation, with the carbonate species as the anion. These species share an ionic bond, while the carbon and oxygen atoms in carbonate are covalently bonded. What type of bond […]