X-rays explained in Urdu ایکس- ریز پیدا کرنے کے لیے ضروری عمل یہ ہے کہ ایٹم کے اندرونی شیلز میں سے کسی الیکٹران کو نکال…
Question 2: What are Bohr’s postulates about Hydrogen atom? Hence derive expressions for (i) radii of electron orbit (ii) energy of the electron. Answer Bohr’s…
S.NoQuestionQuestion 1Describe the spectrum of hydrogen in detail.See AnswerQuestion 2What are Bohr’s postulates about hydrogen atom? Hence derive expressions for (1) radii of electron orbit…
Question 1: Describe the spectrum of hydrogen in detail ANSWER Spectrum of H atom Hydrogen atom is said to be stable when its electron revolves…
Question 2: What are Bohr’s postulates about Hydrogen atom? Hence derive expressions for (i) radii of electron orbit (ii) energy of the electron. ANSWER Neil…
Question 3: What do you understand by the terms normal state, excited state, excitation energy, ionization energy. ANSWER Normal State Atom has the tendency to…
Question 4: What are X-rays? Give an account of the properties and uses of X-rays. ANSWER X-rays are high power penetrating radiations which are emitted…
Question 5: What is a laser? Explain the principle and operation of a laser. Describe some practical uses of lasers. ANSWER Laser The acronym LASER…