Question67:-Astigmatism can be corrected using
‘AcGylindrical lens
B:-Convex lens
CConcave lens
D-Bifocal lens
Correct Answer:- Option-é
Question68:-In the modern periodic table, the period indicates the value of
0
B:-Atomic mass
C=Principal Quantum number
D-Azimuthal Quantum number
Correct Answer:- Option-é
‘Question69::Which of the following statements is incorrect in relation to ironization enthalpy ?
1. irenization enthalpy incre....
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