Reproduction in Animals- Quick Revision 02
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Hydrogen Line spectra – Bohr’s Model Approach According to the third postulate of Bohr’s Model, whenever an electron jumps from higher energy level (orbit) of a Hydrogen atom to one of its lower energy level, an electromagnetic wave (em wave) emits. The energy of em wave is equal to the energy difference between the two…
Convex Lens Viva Questions – Finding Focal Length using Graphs To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v A. Basic Understanding Q1. What is a convex lens? Answer: A convex lens is thicker at the centre; therefore, it converges parallel light rays….
Experiment No.: Title: Density Determination of a Solid Using a Spring Balance and Measuring Cylinder Objective: To determine the density of a solid by measuring its mass using a spring balance and its volume using a measuring cylinder. Apparatus Required: Theory: Density (ρ) is defined as the mass per unit volume of a substance and…
Frequently Asked Questions (FAQs) on Motion Q1: What is motion? Ans: Motion is the change in an object’s position with time. It can be observed directly, such as a car moving, or inferred indirectly, like the movement of dust particles indicating air motion. Q2: How can we describe the position of an object? Ans: The…