Physics question and answers for October 10, 2023
- Q A particle X moving with a certain velocit has a de Broglie wavelength of 1 A I particle Y has a mass of 25 that of X and velocity 75...
- Q The figure below is the plot of potential energy versus inter nuclear distance d of H molecule in the electronic ground state What is the value of net potential energy...
- Q Q 33 Calculate the ground state energies of the 2 electron in eV in the case of He and Li RH 13 6 eV 1 13 60 eV and 54...
- Q or Ax Ap Ax Av mass X h 4 iiFor other canonical conjugates of motion the equation for Heisenberg uncertainty principle can be modified Momentum mass x velocity h m...
- Q 3 3 K Rb Cs K E 4 Cs Rb K K E Maximum electron in 3rd shell having m 2 will be 1 2 2 O 3 12 4...
- Q c In the case of bigger particles having considerable mass the value of uncertainty product is negligible Uncertainty principle is important only in the case of smaller moving particles like...
- Q tron be accelerated with a y may be given as charge on the particle lomb On vii we get vii with the help of de Broglie concept of wave nature...
- Q 4 The wavelength of second Balmer line in Hydrogen spectrum is 600 nm The wavelength for its third line in Lyman series is a 800 nm c 400 nm 016...
- Q 24 The mass of beryllium 9 is 9 012182 g mol The mass of a proton is 1 007825 g mol The mass of a neutron is 1 008665 g...
- Q Consider the given table Metals Threshold frequency x10 s A 5 2 B 3 8 C 4 6 D 5 8 Photoelectrons ejected from which metal surface will have highest...
- Q Calculate the internal energy and enthalpy changes resulting if air changes from an initial state of 5 C and 10bar where its molar volume is 2 312 x10 m mol...
- Q ii For gas molecules h mX Vrms where k Boltzmann h 3mkT constant 2 c In SS th certain ving 9 1
- Q Calculate the maximum kinetic energy of photoelectrons emitted when a light the frequency 2 x 10 6 Hz irradiated on a metal surface with threshold frequency v equal to 8...
- Q If and are respectively the wavelengths of the series limit of Lyman and Balmer series of Hydrogen atom then the wavelength of the first line of the Lyman series of...
- Q Due to inter electronic repulsion an electron experiences less nuclear charge It is therefore said that inner shell electrons shield the nucleus The actual nuclear charge experienced by an electron...
- Q 29 a For an element with atomic number 29 i Write the electronic configuration ii Write the value of n and I for its electron in its valence shell b...
- Q In context with the transition elements which of the following statements is incorrect In the highest oxidation states the transition metals show basic character and form cationic complexes In the...
- Q Let the mass of electron is two times mass o proton is 1 4th and mass of neutron is 3 2 a original mass Then the atomic weight of C...
- Q where dr is a small volume element The values of y which are in accordance with the above conditions are taken as valid and are known as Eigen functions and...
- Q Which transition of electron in Li2 would emit the photon whose wavelength will be same as that of photon emitted by Hydrogen atoms corresponding to 2nd line of Balmer series...
- Q of M 10 KIO3 the same stock solution of KI requires 30 mL of M KIO3 under similar conditions calculate the percenta AgNO3 in the sample Reaction KIO3 2KI 6HCl...
- Q A girl is sitting near the open window of a train that is movingat a velocity of 22.00 m/s to the east. The girl's uncle standsnear the tracks and watches...
- Q Which of these are actual evidence for the existence of a blackhole in the center of the Milky Way, and which are not?Stars are observed to disappear into the black...
- Q Special relativityQ: What is Einstein’s special relativity principle?Q: What is the relativity of simultaneity?Q: What is time dilation? Length contraction?Q: Why is there a cosmic speed limit?
- Q A 4.00-kg block rests on an inclined plane that has aninclination angle of 31.3o. A string attached to this block, goesuphill and over a frictionless pulley, and then is attached...
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