Login
Subject: Chemistry, asked on 24/12/16

In black body radiation .how black body looks like ?do it have any specific structure ?

Subject: Chemistry, asked on 24/10/15

Why a particle behaves as a wave?

Subject: Chemistry, asked on 17/9/16

why for rutherford experiment only thin sheet of gold foil is used and not any sheet of other metal? what would have been the change in observation if thin sheet of any metal or non metal other than gold was used?

Subject: Chemistry, asked on 13/9/16

solution please....

Subject: Chemistry, asked on 9/9/16

Can gamma rays be emited from excitation or de-excitation of electrons in atoms?

Subject: Chemistry, asked on 29/8/16

1. ) The 4f subshell of an atom contains 14 electrons. What is the maximum number of electrons having same spin in it?
b) State Heisenberg’s uncertainty principle

Subject: Chemistry, asked on 29/8/16

1. a) What are the subshells possible in n=3 energy level?
b) How many unpaired electrons are present in the ground state of P (Z=15)
c) How many electrons in zinc (Z=30) have (n+l ) value = 4?

Subject: Chemistry, asked on 29/8/16

1. ) Give a plot of wave function with distance from the nucleus for 2s orbital.
b) Differentiate the following:
i) Orbit and orbital.
ii) Emission spectrum and absorption spectrum

Subject: Chemistry, asked on 29/8/16

) Calculate the mass of a photon of sodium light which has a wavelength of 5894A0 and velocity 3×108m/s.
b) Why are the 4s orbitals filled before the 3d orbitals?
c)On the basis of quantum numbers, justify that the fourth period of the periodic table has 18 elements

Subject: Chemistry, asked on 29/8/16

) An electron has a speed of 500m/s with uncertainty of 0.02%.What is the uncertainty in locating its position?
b) Which quantum number signifies the shape and orientation of the orbital?
c) Draw the boundary surface diagrams of dyz and py orbitals

Subject: Chemistry, asked on 23/8/16

Is frequency is directly proportional to temperature in wave natue also

Subject: Chemistry, asked on 23/8/16

Is frequency is directly proportional to temperature is wave nature ?

Subject: Chemistry, asked on 19/8/16

The value of charge on the oil droplets experimentally observed were -1.6*10^-19 and -4*10^-19 C. The value of the electronic charge, indicted by the results is

Subject: Chemistry, asked on 15/8/16

The energy required to remove an electron from the surface of sodium metal is 5.4 eV. What is the longest wavelength of radiation with which it can show photoelectric effect?
A1800 Ã
B2000 Ã
C2300 Ã
D3600 Ã

Subject: Chemistry, asked on 13/8/16

What is photon and quanta?

12345
What are you looking for?