Class 11 Archives - CBSE Class Notes Online

Which Property of Matter Is Used to Measure Temperature?

April 14, 2025April 16, 2025 - by Jaishree Gorane - Leave a Comment

Temperature is measured using the property of thermal expansion, where matter increases in volume with heat due to increased particle motion. This expansion is predictable and used in thermometers and other devices. As temperature rises, particle spacing increases, causing expansion in solids, liquids, and gases, making thermal expansion a reliable way to measure temperature.

Why is the Latent Heat of Steam So High? Find the Answer

March 1, 2025March 1, 2025 - by Jaishree Gorane - Leave a Comment

Latent heat of steam is the energy required to convert water into steam without a temperature change. Water’s strong hydrogen bonds make its latent heat exceptionally high, requiring 2260 kJ/kg at 100°C. This property is essential in power plants, cooking, industries, and weather systems, making steam an efficient heat carrier in various applications.

Chapter 1 - Matter In Our Surroundings / Class 11 / Class 9 / Science / Science / Science Facts

Why Steam Burns Are More Dangerous Than Boiling Water Burns

March 1, 2025March 1, 2025 - by Jaishree Gorane - Leave a Comment

Why Steam Burns Are More Dangerous Than Boiling Water Burns | Explained

Chapter 1 - Matter In Our Surroundings / Class 11 / Class 9 / Science / Science Facts

What is Latent Heat? Fusion & Vaporization Explained with Real-Life Applications

March 1, 2025March 1, 2025 - by Jaishree Gorane - Leave a Comment

Latent heat is the energy required to change a substance’s phase without temperature change. Learn how latent heat of fusion helps ice melt and how latent heat of vaporization turns water into steam. Understand key formulas, real-life examples, and heating curves to grasp how heat energy affects melting, boiling, freezing, and condensation.

Chapter 1 - Matter In Our Surroundings / Class 11 / Class 9 / Science

Latent Heat of Fusion Formula- Easy Explanation with Formula & Examples

February 28, 2025March 1, 2025 - by Jaishree Gorane - Leave a Comment

The Latent Heat of Fusion formula helps calculate the heat energy needed to melt or freeze a substance without changing its temperature. This guide explains the formula Q = m × L, breaks down step-by-step calculations, and compares it with other heat equations. Perfect for students and physics enthusiasts looking for clear and practical explanations.

Angiosperms- Characteristics, Classification, and Reproductive Biology

April 15, 2024April 15, 2024 - by Jaishree Gorane - Leave a Comment

Discover angiosperms, the largest group of plants. This article explores their distinctive characteristics, reproductive mechanisms, and classification. Learn how angiosperms develop from flowers to fruits, and understand their significant roles in ecosystems. Gain insights into the unique biological processes that define angiosperms, from pollination to seed development.

Gymnosperm Life Cycle with Pine Tree Example

April 14, 2024April 15, 2024 - by Jaishree Gorane - Leave a Comment

The gymnosperm life cycle involves distinct phases from spore production to seed maturation. Key stages include spore formation, pollination by wind, and seed development without fruit enclosures, showcasing the alternation between dominant sporophyte and reduced gametophyte stages. This lifecycle enables gymnosperms like pines and redwoods to thrive across diverse environments.

Biology Concepts / Class 11 / Science / Science Facts

Gymnosperm Overview- Characteristics, Classification, Life Cycle, Examples, and Economic Impact

April 13, 2024April 15, 2024 - by Jaishree Gorane - Leave a Comment

Gymnosperms, seed-producing vascular plants, lack flowers and fruits, exposing their seeds on cone scales. Originating in the Paleozoic era, their characteristics include naked seeds, needle-like leaves, and wind pollination. Divided into four groups—Cycadophyta, Coniferophyta, Ginkgophyta, Gnetophyta—they play crucial ecological roles and have significant economic value in food, medicine, and industry.

Class 11 / Class 12 / NEET Biology

Antigen and Pathogen – Differences, Definitions and Functions

March 18, 2024April 20, 2025 - by Jaishree Gorane - Leave a Comment

Antigens and pathogens are distinct entities in immunology. Antigens trigger immune responses without causing harm, while pathogens directly cause disease. This article outlines their differences in terms of structure, function, and immune interaction-essential knowledge for biology, medicine, and vaccine science.

Class 11 / Class 12 / NEET Biology

Difference Between Antigens and Antibodies – Structure, Function, and Role in Immunity

March 18, 2024April 20, 2025 - by Jaishree Gorane - Leave a Comment

Antigens and antibodies differ in several aspects. Antigens, like bacteria or viruses, trigger immune responses and can originate from within the body in autoimmune diseases. Antibodies, produced in response to antigens, neutralise or eliminate them, aiding in immunity. They vary in molecular structure, origin, and function etc..