Dr. Gaurav Jhaa Blogs

  Basis Set in Theoretical Chemistry: An Introduction In theoretical chemistry, the concept of a basis set plays a fundamental role in the calculation of molecular properties. A basis set is a collection of functions used to approximate the wavefunction of a molecule. The wavefunction represents the quantum mechanical state of a molecule, and its calculation is the foundation for the prediction of molecular properties such as bond lengths, bond angles, and energies. The choice of basis set significantly affects the accuracy and computational cost of the calculation. Therefore, selecting the most suitable basis set is critical for obtaining reliable and accurate results. We will be looking at... ·          why we use basis sets. ·          the physical meaning of basis sets. ·          why to use STOs and GTOs. ·          how we use basis sets. ·          basis set notation. ·          choosing a basis set ·          the quality of basis sets.       BSSE ·          methods vs basi

  Choosing your first DSLR camera can be an exciting but daunting experience. DSLR cameras offer more control and better image quality than point-and-shoot cameras, but they can also be more complex and have a steeper learning curve. In this guide, we'll walk you through the key factors to consider when choosing your first DSLR camera. Budget The first thing to consider when choosing your first DSLR camera is your budget. DSLR cameras can range from a few hundred to several thousand dollars, so it's important to determine how much you're willing to spend. Keep in mind that you'll also need to purchase additional accessories, such as lenses and memory cards. Brand There are several major DSLR camera brands to choose from, including Canon, Nikon, and Sony. Each brand has its own strengths and weaknesses, so it's worth researching and comparing different models from each brand to find the one that best suits your needs. Megapixels Megapixels refer to the re

  Cameras have come a long way in the last few years, and there are many options available on the market today. Whether you're a professional photographer or a casual hobbyist, it can be difficult to decide on the best camera for your needs. In this blog, we'll guide you through the process of selecting a camera for purchase, along with some examples to help you make an informed decision. Define your needs The first step in selecting a camera is to define your needs. Consider what type of photography you'll be doing and your budget. Are you looking for a compact camera for everyday use or a professional-grade camera for more advanced photography? Make a list of your priorities so that you can narrow down your options. Choose your camera type There are three main types of cameras to choose from: point-and-shoot, mirrorless, and DSLR. Point-and-shoot cameras are small and compact and offer simple, automatic settings. Mirrorless cameras are smaller than DSLRs but offer m