Real images are always inverted and can obtained on screen, whereas Virtual images are always erect and cannot be obtained on screen

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound.

On adding zinc to copper sulphate solution, zinc displaces copper from copper sulphate and forms zinc sulphate solution. It will undergo a reaction, called the displacement reaction of metal because zinc is more reactive than copper according to the reactivity series.

Zn+CuSO4(aq.)(Blue)----->ZnSO4+Cu(Brown ppt.)

When a ray of light strikes a smooth plane surface, it returns to the same medium after striking. This phenomenon is called reflection of light.

Laws of Reflection :

1. The angle of incidence and the angle of reflection are equal.

2. Incident ray, reflected ray, and normal lie in the same plane.

In this video, we will discuss the handy tools we need to carry in the biology lab. Basically, these come under a dissection kit but it’s not necessary every time to perform a dissection with them. These tools help us handle the specimen and to study them.

Tollens’ test, also known as silver-mirror test, is a qualitative laboratory test used to distinguish between an aldehyde and a ketone. It exploits the fact that aldehydes are readily oxidized (see oxidation), whereas ketones are not. Tollens’ test uses a reagent known as Tollens’ reagent, which is a colorless, basic, aqueous solution containing silver ions coordinated to ammonia [Ag(NH3)2+] . Tollens’ reagent oxidizes an aldehyde into the corresponding carboxylic acid. The reaction is accompanied by the reduction of silver ions in Tollens’ reagent into metallic silver, which, if the test is carried out in a clean glass test tube, forms a mirror on the test tube.

When the magnesium metal burns, it reacts with oxygen found in the air to form Magnesium Oxide. Oxygen and magnesium combine in a chemical reaction to form this compound. After it burns, it forms a white powder of the magnesium oxide. This is an exothermic reaction with the production of light.

The metal oxide formed is basic is nature & its nature can be tested by using Ph paper.

In this video, using Resonance Phenomenon, we explained how a glass breaks under high frequency sound waves. Experimentally, we demonstrated the resonance phenomenon using Barton pendulum. The phenomenon plays a vital role in the working of MRI machines, microwave oven etc.

In this video, we verified that matter is made up of small size indivisible particles. To demonstrate, we used the aqueous solution of potassium permanganate . We observe that the color of solution is fading away each time when the water is added, but it does not vanish. This tells us that the solution is made up of microscopic indivisible particles.

In this video, you will see how, from a tiny seed a new plant is grown. what all changes a seed goes through and how an early plantlet looks like. How germination of seed takes place and what all climatic conditions does a seed require to germinate.

The video explains the gyroscopic theory of how the bike keeps itself upright. The spinning wheel provides enough stability to stop the bike from falling when in motion. In this video, a gyroscope is constructed from an old bicycle rim. The video will be helpful not only for science students but for others as well.

This video covers everything that you need to know about pH (acid-base indicators). As the name suggests, this video will be very helpful for students who study basic chemistry. The explanations in the video are explained in a very simplistic and easy to comprehend manner.

This video covers everything that you need to know about pH (acid-base indicators). As the name suggests, this video will be very helpful for students who study basic chemistry. The explanations in the video are explained in a very simplistic and easy to comprehend manner.

The experiment is based on the working of Simple Pendulum under different values of mass and length.