SuperCoaching AE/JE by Testbook
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🚨 RRB JE CBT 1 2026 – OBJECTION QUESTIONS!
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❤1
Which of the following sets of quantum numbers is not permissible for an electron in an atom?
Anonymous Quiz
19%
n=3, l=2, ml=1, ms=+1/2
42%
n=4, l=3, ml=0, ms=-1/2
30%
n=2, l=2, ml=1, ms=+1/2
9%
n=3, l=0, ml=0, ms=-1/2
Let f(x) = x^2 - 4x + 3. If the roots of f(x) = 0 are alpha and beta, what is the value of alpha^3 + beta^3?
Anonymous Quiz
26%
28
54%
24
18%
32
2%
26
A uniform solid sphere of mass M and radius R rolls without slipping down an incline of angle theta. If the sphere is replaced by a uniform solid cylinder of the same mass and radius, what is the ratio of the linear acceleration of the sphere to that of the cylinder?
Anonymous Quiz
18%
15:14
65%
14:15
18%
7:6
0%
6:7
A particle moves along a circular path with a constant angular velocity of 2 rad/s. If the radius of the path is 3 meters, what is the linear speed of the particle in m/s?
Anonymous Quiz
14%
2
43%
3
29%
5
14%
6
Which of the following complexes exhibits the highest crystal field splitting energy (Delta_o) for the same metal ion?
Anonymous Quiz
11%
[M(H2O)6]3+
46%
[M(NH3)6]3+
42%
[M(CN)6]3-
2%
[M(en)3]3+
Which of the following compounds exhibits optical isomerism?
Anonymous Quiz
5%
1-butanol
23%
2-butanol
70%
2-methyl-2-butanol
2%
2-propanol
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