When an electron makes a transition from the N 4 to the N 2 then emitted line spectrum will be? Explanation: Jump to second orbit leads to Balmer series. The jump from 4th orbit shall give rise to second line of Balmer series. When an electron in hydrogen atom is excited? When an electron in […]
What is the main drawback of filament lamp?
What is the main drawback of filament lamp? The major disadvantage associated with filament bulbs is its cost. Though the initial costs are less, over the period, the current bills are going to be high since filament bulbs draw large units of power. This is because the filament bulbs spend nearly ninety percent of the […]
What are all the types of energy when a bullet is fired?
What are the 3 magnetic materials?
What are the 3 magnetic materials? Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include the elements iron, nickel and cobalt and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone. Does the human […]
Do pilots pee while flying?
Do pilots pee while flying? Piddle Packs are small bags male fighter pilots use to pee while in flight. They are specially shaped bags with absorbent beads in them. If we have to relieve ourselves, we’ll unzip the flight suit—which is designed to unzip from the top as well as the bottom—unroll the piddle pack, […]
What are the applications of DNA sequencing?
What are the applications of DNA sequencing? Homologous DNA sequences from different organisms can be compared for evolutionary analysis between species or populations. Notably, DNA sequencing can reveal changes in a gene that may cause a disease. DNA sequencing has been used in medicine including diagnosis and treatment of diseases and epidemiology studies. What are […]
What is the best shoe stretcher?
What is the best shoe stretcher? FootFitter Premium Professional Should your toes touch the end of shoes? We should not be making contact with the end of the toe box; in fact many well-fit walking shoes should have a generous space between the end of the toebox and the tip of the toes. We should […]
Why did the Hindenburg not use helium?
Why did the Hindenburg not use helium? U.S. law prevented the Hindenburg from using helium instead of hydrogen, which is flammable. After the crash of the hydrogen-filled R101, in which most of the crew died in the subsequent fire rather than the impact itself, Hindenburg designer Hugo Eckener sought to use helium, a non-flammable lifting […]
What are two different types of electron microscopes?
What are two different types of electron microscopes? There are two main types of electron microscope – the transmission EM (TEM) and the scanning EM (SEM). The transmission electron microscope is used to view thin specimens (tissue sections, molecules, etc) through which electrons can pass generating a projection image. What is the greatest advantage of […]
How dangerous is spearfishing?
How dangerous is spearfishing? With Spearfishing you may encounter a variety of dangers including Sharks, shallow water blackout, heavy seas, strong currents, Jelly Fish, and risk drowning as a result fo line tangles. Spearfishing by its very nature is an extreme sport and few activities can rival the excitement and thrill of landing a quality […]