In a hydrogen atom energy of k level is -13.6eV
L level is -3.4eV
M level is -1.5eV
Now if electrons dexcite from M level then there is possibility for the three values of the energy of photons released...
Homework Statement
Three photons coming from excited atomic hydrogen sample are picked up. Their energies are 12.1 eV, 10.2 eV and 1.9 eV. These photons must come from?
A)two or three atoms
B)single atom
C)three atoms
D)two atoms
The Attempt at a Solution
By solving it i got single...
A ball of mass 'm' drops from a height 'h'. Which sticks to a massless hanger after striking it .. Neglect overturning. Find out maximum extension in rod, assuming that the rod is massless..
Which of the following statements are true??
OPTIONS:
A)a rotating ball is kept on a rough inclined plane.It may remain at rest till it is rotating.
B)A rigid body rolls up an inclined plane without sliding. The friction force on it will be upwards.
C)A rigid body rolls down an...
Find moment of inertia of a uniform quarter disc of radius R
and mass M about an axis through its centre of mass and
perpendicular to its plane ...
I tried in the following way:
I considered the relation. I= Icm + Md2
Where d is the distance between required axis and centre of...
V=ir. R means effective resistance
"i"means total current through the cell.
And then divide current into the branches of circuit in corresponding ratios.