Question Answers

The unbalanced chemical reactions given in Column 1 show missing reagent or condition which are provided in Column 2. Match Column 1 with Column 2 The unbalanced chemical reactions given in Column 1 show missing reagent or condition which are provided in Column 2. Match Column 1 with Column 2 November 29, 2020 Category: Uncategorised [...]

The anode voltage of a photocell is kept fixed. The wavelength λ of the light falling on the cathode is gradually changed. The plate current I of photocell varies as follows The anode voltage of a photocell is kept fixed. The wavelength λ of the light falling on the cathode is gradually changed. The plate [...]

The time taken by a photoelectron to come out after the photon strikes is approximately : The time taken by a photoelectron to come out after the photon strikes is approximately : November 29, 2020 Category: Chapter 17 - Dual Nature of Radiation , JEE Mains Physics 2002-2019 Solved Video Solutions ,

The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV and the stopping potential for a radiation incident on this surface is 5V. The incident radiation lies in: The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV and the stopping potential for a radiation incident on [...]

Photon of frequency v has a momentum associated with it. If c is the velocity of light, the momentum is : Photon of frequency v has a momentum associated with it. If c is the velocity of light the momentum is : November 29, 2020 Category: Chapter 17 - Dual Nature of Radiation , JEE [...]

The surface of a metal is illuminated with the light of 400nm. The kinetic energy of the ejected photoelectrons was found to be 1.68eV. The work function of the metal is (hc=1240eVnm) The surface of a metal is illuminated with the light of 400nm. The kinetic energy of the ejected photoelectrons was found to be [...]

Match the reactions in Column 1 with the nature of the reactions/type of the products listed in Column 2. Match the reactions in Column 1 with the nature of the reactions/type of the products listed in Column 2. November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The amount of water produced (in g) in the oxidation of 1 mole of rhombic sulphur by conc. HNO3 to a compound with the highest oxidation state of sulphur is ……………….. The amount of water produced (in g) in the oxidation of 1 mole of rhombic sulphur by conc. HNO3 to a compound with the [...]

At 143 K. the reaction of XeF4 with O2F2 produces a Xenon compound Y. The total number of lone pair(s) of electrons present on the whole molecule of Y is ………….. At 143 K. the reaction of XeF4 with O2F2 produces a Xenon compound Y. The total number of lone pair(s) of electrons present on [...]

Match List I with List II and select the correct option from the choices given below the List: Match List I with List II and select the correct option from the choices given below the List: November 29, 2020 Category: Chapter 17 - Dual Nature of Radiation , JEE Mains Physics 2002-2019 Solved Video Solutions [...]