For a triangle, show that the point where altitude cuts circumcircle is the image of the orthocentre about the side.
Solution
Let ABC be triangle having H as orthocentre. The proof is given below for reflection about side BC. Similar approach can be used for reflections about other sides. Continue reading For a triangle, show that the point where altitude …
Q: Two wave pulses identical in shape but inverted with respect to each other are produced at the two ends of a stretched string and are moving in opposite directions with same speed. At an instant when the pulses reach the middle of the string, the string becomes completely straight. What happens to the energy of the two pulses at this instant? Continue reading Wave Pulses ~ Q & A
Q: Which force out of four fundamental forces is involved during handshake?
A: The force involved during a handshake is the electromagnetic force, which is one of the four fundamental forces of nature. The electromagnetic force is responsible for the interaction between charged particles, such as the protons and electrons in atoms. When two people shake hands, the electromagnetic force between the electrons in their respective hands creates a repulsive force, which gives the sensation of a solid handshake.
Q: Do protons inside nucleus attract each other? If yes by which force(s)? Continue reading Proton Attraction Inside Nucleus ~ Q & A
The first law of thermodynamics is a fundamental principle in thermodynamics that states that energy cannot be created or destroyed, but it can be transformed from one form to another. This law is also known as the law of conservation of energy. Continue reading 1st Law of Thermodynamics
Bohr’s atomic model, also known as the Bohr model or the Rutherford-Bohr model, is a description of the structure of atoms that was first proposed by Niels Bohr in 1913. This model was a major development in the understanding of atomic structure, and it remains an important part of the history of chemistry and physics. Continue reading Bohr’s Atomic Model
Conservation of linear momentum is a fundamental principle in physics that states that the total momentum of a closed system remains constant, provided no external forces act on the system. This principle can be applied to a variety of physical systems, including a bullet and a gun. Continue reading Conservation of Linear Momentum ~ Gun + Bullet