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1 day ago · James Franck and Gustav Hertz conducted an experiment in 1914, which demonstrated the existence of excited states in mercury atoms. It confirms the prediction of quantum theory that electrons occupy only discrete, quantized energy states. This experiment supports Bohr model of atom.
23 hours ago · 1:33. Hertz Global Holdings Inc. is exploring options to raise financing weeks after the company’s new chief executive officer pledged to get the company back on track following a failed bet on ...
4 days ago · The head of the World Health Organization on Monday voiced confidence that countries would one day reach a deal on a pandemic accord after failing to produce an agreement last week, although ...
1 day ago · The Planck constant, or Planck's constant, denoted by , [1] is a fundamental physical constant [1] of foundational importance in quantum mechanics: a photon 's energy is equal to its frequency multiplied by the Planck constant, and the wavelength of a matter wave equals the Planck constant divided by the associated particle momentum.
3 days ago · The World Health Assembly (WHA) today recognized the progress made over the past two years by Member States to develop a pandemic agreement and strengthen the International Health Regulations (IHR, 2005). Governments meeting in Geneva for the Seventy-seventh World Health Assembly are in talks to advance these two efforts, which aim to boost the world’s ability to better able to prevent and ...
4 days ago · The planned highlight of the meeting -- the ceremonial signing of a WHO pandemic treaty -- was cancelled after two years of global negotiations ended last Friday without an agreement. Negotiators ...
2 days ago · The phenomenon 'Photoelectric effect' was first observed by Heinrich Hertz. The man who gave the correct explanation for the same was. ..... ..... ..... The emission of photo electrons from meal surface when certain electromagnetic radiation incident on it is called Photoelectric effect.
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