What is Diffusion? Diffusion is the process by which particles of a substance move from an area of high concentration to an area of low concentration, resulting in the mixing of substances. This movement is due to the random motion of particles, which causes them to spread out and mix with other particles over time. …
A gas is a state of matter in which the particles are so far apart that they exert little or no force of attraction on each other. They are characterized by their ability to expand and fill any container they are placed in, and they have no fixed shape or volume. This is because the …
Nuclear energy is energy that is released from the nucleus of an atom through a process called nuclear fission or fusion. Nuclear power plants use nuclear fission to generate electricity. In nuclear fission, the nucleus of a heavy atom such as uranium is bombarded with neutrons, causing it to split into two smaller nuclei and …
What are Non-Metallic Minerals? Non-metallic minerals are naturally occurring inorganic substances that do not contain any metals. They have a wide range of properties, including being brittle, poor conductors of heat and electricity, and having a dull or frosted appearance. Non-metallic minerals can be found in all three states of matter: solid, liquid, and gas. …
What are Non-Conventional Energy Sources? Non-conventional or renewable energy sources are sources of energy that are replenished naturally and can be used repeatedly without getting depleted. These sources of energy are considered cleaner and more sustainable alternatives to conventional sources of energy, such as coal and oil, which are finite and have negative environmental impacts. …
When it comes to the geometric construction of images formed by a concave lens, there are a few key steps to follow. Let’s explore the process in detail: Start with the Lens Draw a vertical line to represent the principal axis of the concave lens. Then, draw the shape of the lens, which is thicker …
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Ques: Write the formula for work done on a body when the body moves at an angle to the direction of force. Give the meaning of each symbol used. Sol.: When a body moves at an angle to the direction of force, the formula for work done can be derived using the dot product of …
Like solids, liquids also expand when heated and contract when cooled due to thermal expansion. However, unlike solids, liquids do not have a definite shape and can take the shape of the container they are in. When a liquid is heated, the kinetic energy of its molecules increases and they begin to move more rapidly. …
Escape velocity is the minimum speed that an object must attain in order to escape the gravitational pull of a planet, moon, or other celestial body. It is the speed at which the object’s kinetic energy is equal to its gravitational potential energy, allowing it to break free from the gravitational field and continue moving …
When solids are heated, they expand in all directions. The two types of expansion that occur in solids are Linear expansion and Superficial (or areal) expansion. Linear expansion Linear expansion refers to the increase in the length of a solid when heated. This can be expressed mathematically using the equation: ΔL = αLΔT where ΔL …
