How black holes are formed in simple words? How Do Black Holes Form? Primordial black holes are thought to have formed in the early universe, soon after the big bang. Stellar black holes form when the center of a very massive...
How many black holes are in Universe? Astonishingly, the researchers have found that the number of black holes within the observable Universe (a sphere of diameter around 90 billion light-years) at present time is about 40 billion billion (i.e., about 40...
What did Sir J.J. Thomson discover? On his return from America, he achieved the most brilliant work of his life – an original study of cathode rays culminating in the discovery of the electron, which was announced during the course of...
What did JJ Thomson discover experiment? In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas....
What did JJ Thomson discover experiment? In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas....
When JJ Thomson proposed his atomic model? J.J. Thomson, an English scientist, proposed the famous Thomson atomic model in the year 1898 just after the discovery of electrons. What did JJ Thomson discover about the atom? On April 30, 1897, British...
When did JJ Thomson discover the plum pudding model? In 1897, Joseph John Thomson (1856–1940) had announced the discovery of a corpuscle. Others soon called it ► electron, despite Thomson’s stubborn preference for his original term, borrowed from Robert Boyle (1627–91)...
How does the cathode ray experiment work? To test the properties of the particles, Thomson placed two oppositely-charged electric plates around the cathode ray. The cathode ray was deflected away from the negatively-charged electric plate and towards the positively-charged plate. This...
How was electron discovered? During the 1880s and ’90s scientists searched cathode rays for the carrier of the electrical properties in matter. Their work culminated in the discovery by English physicist J.J. Thomson of the electron in 1897. How did JJ...
How did cathode ray tube work? In the cathode ray tube, electrons are ejected from the cathode and accelerated through a voltage, gaining some 600 km/s for every volt they are accelerated through. Some of these fast-moving electrons crash into the...