## Do We Really Need a Battery | Physics

Hey friends! Ever wondered, what drives the current in an electrical circuit? What’s the role of a battery we get at the electrical stores. For those of you, who are really fascinated by gadgets, electrical appliances, in this video we find out that do we really need a battery in a circuit. Let’s have a

## Force – a Push or Pull | Physics

Force, a very common word, right? As you can see some images over here, in all the see some images over here, in all the images, people are doing something, right? images people are doing something, right Let’s analyze what exactly are they let’s analyze what exactly are they doing over here? In the first

## Modern Periodic Table | Chemistry

So many attempts of classifying elements had failed. Then in 1913 an english physicist Henry Moseley found out that the fundamental property of an element is not atomic mass but it is it’s atomic number. Because atomic number tells us the number of electrons present in any atom of the element and number of electrons

## Uniform Motion and Non-Uniform Motion | Physics

Motion can be of two types: a uniform motion something like this or a non uniform motion something like this. I’m sorry, we are here to learn about Physics. Uniform motion is when an object travels equal distances in equal amounts of time. Let’s look at this car. You can see that this car is

## 24. Physics | Laws of Thermodynamics | Solved Example-10 on Thermodynamics | by Ashish Arora

in this example, we are given that a thermodynamic system, internal energy of, system decreases by 400 joule. while it is doing 2 50 joule of work. we are required to find what net heat is taken in, by the system in the process we need to find out the amount of heat supplied, here

## 41. Class 12th Physics | Atomic Structure | Use of Bohr Model to Define Hypothetical Energy Levels

let us now discuss the use of bohr model to define hypothetical energy levels in different kind of imaginary atom , if we talk about hydrogenic atoms we can directly write that – in hydrogenic atoms . bohr’s first and second postulates . are given as. we know that bohr’s first postulate is given in

## 25. Class 12th Physics | Reflection of Light | Some Definitions About Spherical Mirrors

let us study about some characteristic definitions about spherical mirrors. like we are studied that there are 2 types of spherical mirrors, one is a concave mirror. in which the outer surface is polished and the inner surface is reflecting. in this situation. the mid point of the. mirror piece. which is, a section of

## Refraction and Refractive Index | Physics

By now, you must have got a good hold on the concepts related to mirrors. the concepts related to mirrors. Want to explore the phenomena related to light mode? Let us see, till now we were dealing with light traveling in air only that is, light traveling in one medium. light traveling in one medium