All the reflected light rays converge and pass through the focus (F) of a concave mirror. Since the focus of a concave mirror is in front of the mirror, the screen has to be placed parallel in front of the ...
Tiwari Academy Discussion Latest Questions
The experiment should be performed on the same wall as the window. Rays from infinity will be focus at the focal point of the mirror.
We know that the external medium is hypertonic (where a solution containing lower concentration of solutes as compared to another cell) the root cells in contact with the soil actively take up ions. This creates a difference in the concentration ...
Out of the metals Mg, Zn, Fe and Al, Mg will react most vigorously with dilute acid, followed by Al, Zn and Fe
Thermite reaction is a reaction between iron oxide (III) or fe₂O₃ and Aluminium. It is a highly exothermic process and iron is produced in the molten state. It is used to join is used to join railway tracks or cracked ...
As the student has focussed a distant blue coloured building on the screen using a convex lens, a real inverted and diminished image is formed at the principal focus of the convex lens. As object is quite far, a diminished ...
The digestion of food is the break down of complex food substances by the enzymes secreted by various parts of the digestive system. Hormones are secreted by the endocrine glands and act on specific targets.
The given reaction is the reaction between Nitric Acid and Calcium Hydroxide to form Calcium Nitrate (a salt and water). The reaction between an acid and a base is known as “neutralization reaction”. It also involves formation of new compounds ...
Inert gases like Helium on Nitrogen both can be used for the storage of fresh sample of oil for a long time, as they do not react with most elements, including oxygen. Thus, these gases create an inert environment for ...
The chemicals used in soda acid fire extinguisher as sodium hydrogen carbonate and sulfuric acid. The gas evolved when the two reactants react is carbon dioxide which is used for extinguishing electrical fires. Reaction will be between two chemicals are: