1)If we compare energy of electron in lower shell (denoted as E lower ) with ene
ID: 1054939 • Letter: 1
Question
1)If we compare energy of electron in lower shell (denoted as Elower) with energy of electron in higher shell (denoted as Ehigher) then we can say that
B.Elower<Ehigher
C.Elower=Ehigher
D.None of these
2)If external energy is provided to an electron then
A.it may move to higher shell or stay in ther original shell
B.it may move to lower shell or stay in the originial shell
C.Both(a) and (b) can happen
D.it will move to the higher shell
3)which of the following process results in release of photon of electromagnetic radiation
A.Electron moving from higher shell to its original one
B.Electron moving from lower shell to its original one
C.both (a) and (b) can result in release of photon
D.Electon moving from lower shell to higher shell passing its original shell
4)The energy of the photon released is ____the wavelength of the photon.
A.directlyproportional to
B.inversely proportional to
C.not proportional to
D.twice
5)Photon of which wavelength eill be visible to naked eye
A350 nm
B.700 nm
C.1050 nm
D.None of these
6)Photon emitted from solution containing lithium ions will
A.have wavelength less than 700 nm
B.have wavelength less than 500 nm
C.have unique wavelength
D.both (b) and (c)
7)Flame test can be performed for
A.only solid samples
B.only solutions
C.only gases
D.both (b) and (c)
8)The energy of photon of wavelength 600 nm is 3.31*10-19J. The energy of photon of wavelength 300 nm will be
A.3.31*10-19J
B.1.65*10-19J
C.6.62*10-19J
D.9.93*10-19J
Explanation / Answer
1)
Elower is more negative than Ehigher
so,
B.Elower<Ehigher
2)
electron will absorb energy and move to higher shell if energy is enough to excite or elese it will stay in the same shell
A.it may move to higher shell or stay in ther original shell
3)
Following process releases energy:
A.Electron moving from higher shell to its original one
4)
E = h*c/lambda
Energy is inversely proportional to wavelength
B.inversely proportional to
i am allowed to answer only 4 parts at a time
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.