Question 2.12: Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength…
Browsing: Chapter – 2 Structure Of Atom
Question 2.11: A 25-watt bulb emits monochromatic yellow light of wavelength of 0.57µm. Calculate the rate of emission of quanta…
Question 2.10: Electromagnetic radiation of wavelength 242 nm is just sufficient to ionize the sodium atom. Calculate the ionization energy…
Question 2.9: A photon of wavelength 4 × 10–7 m strikes on the metal surface, the work function of the…
Question 2.8: What is the number of photons of light with a wavelength of 4000 pm that provide 1 J…
Question 2.7: Calculate the wavelength frequency and wave number of a light wave whose period is 2.0 × 10–10 s.…
Class 11 Chemistry Chapter 2 Question 2.1 https://www.youtube.com/watch?v=_lNTTItFsbg&t=32s Question 2.1: (i) Calculate the number of electrons which will together weigh…
https://www.youtube.com/watch?v=wPSp-xSYWsw Question 2.4: Write the complete symbol for the atom with the given atomic number (Z) and atomic mass (A)…
https://www.youtube.com/watch?v=6-di0ujG_Ew Question 2.3: How many neutrons and protons are there in the following nuclei? 136C, 168O, 2412Mg, 5626Fe, 8838Sr…
Question 2.5: Yellow light emitted from a sodium lamp Question 2.5: Yellow light emitted from a sodium lamp has a…