In Bohr's model, for aunielectronic atom, following symbols are used
`r_(n)z rarr` Potential energy `n+_(th)` orbit with atomic number Z,
`U_(n,z)` rarr Potantial energy of election , `K_(n,z)rarr` Kinetic energy of electron ,
`V_(n,z)rarr` Volocity of electron , `T_(n,z) rarr` Time period of revolution
`{:("ColumnI","ColumnII"),((A)U_(1,2):K_(1,1),(P)1:8),((B)r_(2,1):r_(1,2),(Q)-8:1),((C)V_(1,3):V_(3,1),(R)9:1),((D)T_(1,2):T_(2,2),(S)8:1):}`

In the Bohr's model , for unielectronic species following symbols are used r_(n,z)to Radius of n^"th" orbit with atomic number "z" U_(n,z)to Potential energy of electron in n^"th" orbit with atomic number "z" K_(n,z)to Kinetic energy of electron in n^"th" orbit with atomic number "z" V_(n,z)to Velocity of electon in n^"th" orbit with atomic number "z" T_(n,z)to Time period of revolution of electon in n^"th" orbit with atomic number "z" Calculate z in all in cases. (i) U_(1,2):K_(1,z)=-8:9 (ii) r_(1,z):r_(2,1) =1:12 (iii) v_(1,z):v_(3,1)=15:1 (iv) T_(1,2):T_(2,z)=9:32 Report your answer as (2r-p-q-s) where p,q,r and s represents the value of "z" in parts (i),(ii),(iii),(iv).

If in Bohr's model, for unielectronic atom, time period of revolution is represented as T_(n,z) where n represents shell no. and Z represents atomic number then the value of T_(1,2):T_(2,1) , will be :

Frequancy =f_(1) , Time period = T, Energy of n^(th) orbit = E_(n) , radius of n^(th) orbit =r^(n) , Atomic number = Z, Orbit number = n : {:(,"Column-I",,"Column-II",),((A),f,(p),n^(3),),((B),T,(q),Z^(2),),((E),E_(n),(r ),(1)/(n^(2)),),((D),(1)/(r_(n)),(s),Z,):}

Which of the following option(s) is/are independent of both n and Z for H- like species? U_(n) = Potential energy of electron in n^(th) orbit KE_(n) = Kinetic energy of electron in n^(th) orbit l_(n) = Angular momentam of electoron in n^(th) orbit v_(n) = Velcity of electron in n^(th) orbit f_(n) = Frequency of electron in n^(th) orbit T_(n) = Time period of revolution of electron in n^(th) orbit

Electrons are revolving around the nucleus in n_(1^(th)) orbit of an atom, have atomic number Z_1 , and in the n_2 orbit of other atom, have atomic number Z_2 , then [Where P= Linear momentum, L=Angular momentum, f=frequency of revolution and K.E. =kinetic energy]

Time period of revolution of an electron in n^(th) orbit in a hydrogen like atom is given by T = (T_(0)n_(a))/ (Z^(b)) , Z = atomic number

An electron in a hydrogen atom makes a transition n_(1) rarr n_(2) , where n_(1) and n_(2) are principal quantum numbers of the states. Assume the Bohr's model to be valid. The time period of the electron in the initial state is eight times to that of final state. What is ratio of n_(2)//n_(1)

In which transition, one quantum of energy is emitted - (a). n=4 rarr n=2 (b). n=3 rarr n=1 (c). n=4 rarr n=1 (d). n=2 rarr n=1

In Bohr's model of the hydrogen atom the ratio between the period of revolution of an electron in the orbit of n=1 to the period of the revolution of the electron in the orbit n=2 is :- (a). 1 : 2 (b). 2 : 1 (c). 1 : 4 (d). 1 : 8

The electron in a hydrogen atom makes a transition n_(1) rarr n_(2) , where n_(1) and n_(2) are the principle quantum numbers of the two states. Assume the Bohr model to be valid. The time period of the electron in the initial state is eight times that in the final state. the possible values of n_(1) and n_(2) are