Category: Physics

What is the formula of path difference? The general formula for destructive interference due to a path difference is given by δ = (m + 1/2) λ / n where n is the index of refraction of the medium in which the wave is traveling, λ is the wavelength, δ is the path difference and […]

What is the density of oxygen in kg m3? 1141 kg/m3 What is the density of gold in kg m3? 19,300 kg/m3 How heavy is 1m3 gold? One cubic meter of gold weighs roughly 19.3 metric tons, or about 42,549.22 English pounds. Is gold high in density? With a density of 19.32 grams per cubic […]

What is the advantages and disadvantages of renewable energy? Disadvantages of renewable energy resources Energy Resource Advantages Disadvantages Hydroelectric power stations Clean and cheap to run Expensive to set up and output could be affected by drought Solar cells Clean and cheap to run Not always sunny and output does not always outweigh initial cost […]

What are the 2 advantages of using solar cooker? 10 Benefits of Solar Cooking Solar cooking is free. Solar cooking is quick and easy. Food cooked with a solar cooker is healthy. Solar cooked food tastes amazing! Solar cookers make no noise. Cooking with sunshine is kind to the environment. Solar cooking ovens are portable. […]

What is the principle of Electroscope? The working principle of an electroscope is based on the atomic structure of elements, charge induction, the internal structure of metal elements and the idea that like charges repel each other while unlike charges attract each other. What is the working of an Electroscope? ELECTROSCOPE : Electroscope is used […]

What are some examples of interval data? Examples of interval data includes temperature (in Celsius or Fahrenheit), mark grading, IQ test and CGPA. These interval data examples are measured with equal intervals in their respective scales. Interval data are often used for statistical research, school grading, scientific studies and probability. How do you know if […]

Is water chemical energy? Water, like many substances, contains two kinds of energy. The first kind of energy is called kinetic energy. This is energy that is used during the execution of processes, such as movement. Because of kinetic energy water can flow and waves can exist. What form is energy stored in the human […]

What is the difference between rate constant and rate of reaction? A rate constant, k, is a proportionality constant for a given reaction….Differences between the rate of reaction and constant: Rate of Reaction Rate Constant It depends upon the concentration of the reactant It is independent of the concentration of the reactant. What is relation […]

How do you convert a smaller unit to a larger unit? To convert a smaller unit to a larger unit (eg to ), divide it by the number of smaller units which are needed to make. To convert from a larger unit to a smaller one, multiply. To convert from a smaller unit to a […]

What is the Joule equal to? One joule equals the work done (or energy expended) by a force of one newton (N) acting over a distance of one meter (m). One newton equals a force that produces an acceleration of one meter per second (s) per second on a one kilogram (kg) mass. Therefore, one […]