explanation

Since most of the alpha particles pass straight through the gold foil without any deflection it shows there is a lot of empty space in an atom. Some of the alpha particles are deflected through small and large angles, which shows that there is a 'centre of positive charge' in an atom, which re..

Some of the charge on the rod is transferred by contact to 'C'. The charge spreads along the metal and the leaves will get negatively charged and repel each othe..

These observations explained that there was a coulomb interaction between a particles and electron. As a particles were 7000 times more massive than electrons, a strong force is needed to deflect them through large angles. Therefore the entire +ve charge of the gold foil was concentrated at th..

Since most of the alpha particles pass straight through the gold foil without any deflection it shows there is a lot of empty space in an atom Some of the alpha particles are deflected through small and large angles, which shows that there is a 'centre of positive charge' in an atom, which rep..

When the positively charged body is brought near the two cans A and B, the electrons (-ve charges) from both the cans are attracted and get concentrated on B which is near R. The can A which has lost the electrons is left with an equal amount of positive charge. When the cans are separated, the pos..

All the characteristic metallic properties can be explained on the basis of the electro..

The table shows the number of people going on a picnic in a mini bus. Tom wants to represent the data in a bar graph. Which explanation holds good for Tom′s choice of graph? Passenger Number Men 21 Women 17 Children 9 => Yes, because only a bar graph shows trends or changes over tim..

Several attempts have been made from time to time to explain the origin of life on earth. As a result, there are several theories which offer their own explanation on the possible mechanism of origin of lif..

The density of the members belonging to this group is found to increase down the group as usual. Explanation: It is because of the increase in mass per unit volum..

Before all the branches of science were clubbed together under the nomenclature 'Natural philosophy', under which all observations of subjective nature were being carried out and spirit of enquiry was almost non-existent, we were satisfied with simple explanations..