NEET UG Mock — Set 1 (180) NEET UG Mock — Set 1 (180) Physics 45 · Chemistry 45 · Biology 90 · +4/−1 · 180 minutes Section: AllPhysicsChemistryBiology Start Test 180:00 0/0 · Previous Mark Clear Next Finish Autosave progress in your browser. Use the review screen to export your answers as JSON.Read More →
Physics Project – DC Motor Class 12 ISC Physics Project Topic: DC Motor Introduction A DC motor is an electrical machine that converts direct current electrical energy into mechanical energy. DC motors are widely used in various applications such as electric vehicles, toys, fans, and tools. Principle The working of a DC motor is based on the principle of the **Lorentz Force**. When a current-carrying conductor is placed in a magnetic field, it experiences a mechanical force. This force causes the armature of the motor to rotate. Construction A basic DC motor consists of the following components: Yoke: Acts as the outer frame and providesRead More →
Physics Project – DC Generator Class 12 ISC Physics Project Topic: DC Generator Introduction A DC generator is a device that converts mechanical energy into direct current (DC) electrical energy using the principle of electromagnetic induction. It plays a crucial role in industries and power systems where DC supply is needed. Principle The working of a DC generator is based on **Faraday’s Law of Electromagnetic Induction**, which states that an electromotive force (EMF) is induced in a conductor when it cuts a magnetic field. Construction A DC generator consists of the following main parts: Yoke: The outer frame that provides mechanical support. Armature Core: ARead More →
Physics Project – Telescope Class 12 ISC Physics Project Topic: Telescope Introduction A telescope is an optical instrument that gathers and magnifies light, allowing us to observe distant objects in space. Telescopes have revolutionized our understanding of the universe by enabling the observation of celestial bodies such as stars, planets, galaxies, and nebulae. Types of Telescopes Refracting Telescope: Uses lenses to bend and focus light. Reflecting Telescope: Uses mirrors to gather and reflect light. Catadioptric Telescope: Combines lenses and mirrors for better focus and image quality. Working Principle Telescopes work based on the principles of refraction or reflection of light. In a refracting telescope, lightRead More →
Physics Project – Transistor Class 12 ISC Physics Project Topic: Transistor Introduction A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is one of the fundamental building blocks of modern electronic devices. Transistors are mainly of two types: NPN and PNP. They are used in a variety of applications such as amplification, switching, voltage regulation, and more. Types of Transistors NPN Transistor In an NPN transistor, current flows from the collector to the emitter when a sufficient voltage is applied to the base. It is commonly used in switching and amplifying applications. PNP Transistor In a PNPRead More →
Student Interactive Planner Student Interactive Planner Add How to use this planner: Advanced Student Planner Advanced Student Planner PriorityHighMediumLow Add Task Task List This Week’s Tasks Sun Mon Tue Wed Thu Fri Sat Export Tasks How it works: Notes: Student Planner – Monthly Calendar & Custom Reminders Student Planner PriorityHighMediumLow CategoryStudyAssignmentExamPersonal Add Your Tasks Monthly Calendar < Prev Next > Sun Mon Tue Wed Thu Fri Sat Export Tasks “` What’s Included ✅ Add task with priority, category, due date, reminder time✅ Color-coded tasks✅ Monthly calendar view✅ Task notifications (requires browser permission)✅ Export & import task JSON✅ Saves to localStorage (auto)Read More →
Translation: Protein Synthesis from mRNA (Degree Level) Translation is the biological process where the genetic code carried by messenger RNA (mRNA) is decoded to build a specific polypeptide or protein. It occurs in the cytoplasm on ribosomes. Key Components Involved: Component Function mRNA Carries the codon sequence (triplets of nucleotides) specifying amino acids. Ribosome Molecular machine composed of rRNA and proteins; site of translation. tRNA (transfer RNA) Brings specific amino acids to the ribosome; has an anticodon complementary to mRNA codon. Amino acids Building blocks of proteins. Initiation factors, Elongation factors, Release factors Proteins that assist the translation stages. Steps of Translation: 1. Initiation 2.Read More →
Respiratory System Physiology (Degree Level) The respiratory system is responsible for gas exchange — supplying oxygen to the blood and removing carbon dioxide. It consists of the airways, lungs, alveoli, and muscles of respiration. Key Processes: 1. Ventilation 2. Gas Exchange 3. Transport of gases 4. Regulation of Breathing Interactive Animation Model This animation demonstrates how ventilation works — the diaphragm and lung volume changing with inhalation and exhalation. How to use: Respiratory System Physiology Animation Respiratory System Breathing Cycle Press Start to see how breathing works! Start AnimationRead More →
Lac Operon Concept (Degree Level) The lac operon is a classic example of gene regulation in prokaryotes (like E. coli). It controls the metabolism of lactose, a sugar, by regulating the production of enzymes needed to digest it. Key Components of the Lac Operon: Component Function Structural genes (lacZ, lacY, lacA) Encode enzymes to metabolize lactose: β-galactosidase, permease, transacetylase Promoter (P) Site where RNA polymerase binds to initiate transcription Operator (O) DNA sequence where the repressor protein binds to block transcription Regulatory gene (lacI) Codes for the repressor protein that controls operon activity Inducer (allolactose) A lactose derivative that binds to the repressor and inactivatesRead More →