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Pragraph : A hydrogen octum in third excited state makes a transtion to first excited state and emit photon. This emitted photon is absorbed by He+ ion which was already in seventh excited state. After absorption of photon He+ ion jumps from seventh excited state to heigher excited state having quantum number ns. 1. The quantum number ns of the state finally populated in He+ ion. a) 8 b) 10 c) 16 d) 20 2. Now He+ ion jumps to lower state by imitting single photon 'P' of visible light. The energy satatis photon is as possible as close to energy of the obsorbed photon by He+ ion (as mentioned in paragraph). Then wave length of the photon 'P' is nearly. a) 6760 Angstrom b) 5000A c) 4480A d) 3500 A 3.The ratio of K.E. of the n = 4 electron for H atom to that He + ion is P1 and the ratio of the total energy of n = 6 electron for H atom to that of He + ion is P2 then ratio of P1/P2 is. a) 1 b) 9/4 c) 4/9 d) 4


 Pragraph : A hydrogen octum in third excited state makes a transtion to first excited state and emit

photon. This emitted photon is absorbed by He+ ion which was already in seventh excited state. After absorption
of photon He+ ion jumps from seventh excited state to heigher excited state having quantum number ns.
 
1. The quantum number ns of the state finally populated in He+ ion.
a) 8 b) 10 c) 16 d) 20
 
2. Now He+ ion jumps to lower state by imitting single photon 'P' of visible light. The energy satatis photon is as possible as close to energy of the obsorbed photon by He+ ion (as mentioned in paragraph). Then wave length of the photon 'P' is nearly.
a) 6760 Angstrom b) 5000A c) 4480A d) 3500 A
 
3.The ratio of K.E. of the n = 4 electron for H atom to that He+ ion is P1 and the ratio of the total energy of n = 6 electron for H atom to that of He+ ion is P2 then ratio of P1/P2 is.
a) 1 b) 9/4 c) 4/9 d) 4


Grade:upto college level

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