1
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

Which of the following is false regarding shielding effect?

A
The magnitude of screening effects depends upon the number of outer electrons.
B
The screening effect and effective nuclear charge are very closely related.
C
Screening effect of all the inner electrons is not equal.
D
The screening effect of $$d$$ and $$f$$ orbitals is taken as almost constant.
2
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

In which of the following photoelectric effect is observed?

A
Mg
B
Ba
C
Ge
D
Cs
3
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

An electron in H-atom in its ground state absorbs 1.50 times as much as energy as the minimum required for its escape $$(13.6 \mathrm{~eV})$$ from the atom. Thus, KE given to emitted electron is

A
13.6 eV
B
20.4 eV
C
34.0 eV
D
6.8 eV
4
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

If $$\mathrm{AgI}$$ crystallises in zinc blende structure with $$\mathrm{I}^{-}$$ ions at lattice points then the fraction of tetrahedral voids occupied by $$\mathrm{Ag}^{+}$$ ions is

A
25%
B
50%
C
75%
D
100%
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