if i draw the graph of 2sin x  its maximum value occurs at +2 and minimum at -2

   

in the RHS you have mod x + a

.

considering minimum value of mod x is 0 { as mod x is always positive } 

 

the given equation will have no solution if  a >( mod 2)

 

 

i hope i am right

 

cheers

If the radius of the 1st Bohr orbit in a hydrogen atom can be determined  with an uncertainity of 1% .What will be the minimum velocity of electron in that orbit ?
 
 Answer to the problem is 1.09*(10 power 8)m/s
 
please help as i cannot make anything out of the problem!