What is the minimum frequency light must have to eject an electron from the surface? The minimum energy required to eject an electron from the surface is called the photoelectric work function. The threshold for this element corresponds to a wavelength of 683 nm. Using this wavelength in the Planck relationship gives a photon energy…
Category: Interesting
Does more heat boil water faster?
Does more heat boil water faster? Increasing the heat will actually make a difference, since bottom water will boil faster and it will transfer more heat to top cool water, before being cooled by ambient temperature. Does more heat cook faster? So yes, things do sometimes cook faster at a rolling boil (what you call…
How do you make your hands not hurt when playing the piano?
How do you make your hands not hurt when playing the piano? Raise your hands above your head throughout the day. This can help to reduce accumulated fluid in your hands and decrease pressure on the median nerve. Take breaks when playing the piano. Stretch. How do you relax your fingers to play piano? To…
What does Wrapped mean in Swift?
What does Wrapped mean in Swift? Unwrapping an optional means that you are now casting that type as non-optional. This will generate a new type and assign the value that resided within that optional to the new non-optional type. This way you can perform operations on that variable as it has been guaranteed by the…
Where can I find old Igcse papers?
Where can I find old Igcse papers? Past papers are available for Cambridge International schools from the School Support Hub, Cambridge Primary and Cambridge Lower Secondary support sites. Some past papers are also available on our website and are free for anyone to access: Cambridge IGCSE. What are Igcse specimen papers? Specimen papers are made…
Who will be next CEO of Microsoft?
Who will be next CEO of Microsoft? Satya Nadella Satya Nadella, Microsoft’s CEO, is becoming the software company’s chair, after running the company for seven years, when he replaced Steve Ballmer. Nadella is taking over the chairperson seat from former Symantec CEO John Thompson. Who is the CEO of Microsoft in 2021? Satya Narayana Nadella…
Who is stronger danzo or hiruzen?
Who is stronger danzo or hiruzen? makes little difference Danzo still wins. In all honesty,Old Hiruzen would win against Danzo. Hiruzen handled the first two Kages which were reanimated. Hiruzen could also use Enma and it could kinda unbalance the fight. Did hiruzen know Danzo has Sharingan? Hiruzen would have believed itachi, as hiruzen knows…
Is JD com bigger than Alibaba?
Is JD com bigger than Alibaba? Alibaba (NYSE:BABA) and JD.com (NASDAQ:JD) are the two largest e-commerce companies in China. Alibaba is expected to control 50.8\% of the market this year, according to eMarketer, as JD claims 15.9\%. What is the name of London Stock Exchange? LSE What Is the London Stock Exchange (LSE)? The London…
What was the first song to have a swear word?
What was the first song to have a swear word? Old Man Moses The First F–k in Song? Eddy Duchin – “Old Man Moses”. American pianist Eddy Duchin looked like the kind of clean-cut chap your parents wish you’d might bring home one day, but his 1938 cover of Louis Armstrong’s “Old Man Moses,” with…
What is the difference between a switchyard and a substation?
What is the difference between a switchyard and a substation? is that substation is a site where electricity supplied by long-distance (high-voltage) transmission lines is transformed and/or regulated for local (low-voltage) distribution while switchyard is part of a railway with an arrangement of switches (or points) allowing trains to be diverted and reassembled. What is…