SuperCoaching AE/JE by Testbook
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A train travels 60kmph for 100km & 80kmph for next 120km. Avg speed?
Anonymous Quiz
13%
68kmph
39%
70kmph
39%
71.11kmph
9%
72.22kmph
A satellite orbits Earth. If its orbital radius doubles, its orbital speed changes by a factor of:
Anonymous Quiz
12%
√2
27%
1/2
59%
1/√2
2%
2
2
What is the area enclosed by |x| + |y| = 1?
Anonymous Quiz
29%
1
34%
2
34%
π
3%
4
A satellite orbits Earth. If its orbital radius doubles, its speed changes by a factor of:
Anonymous Quiz
9%
√2
28%
1/2
57%
1/√2
6%
2
3
A ball is thrown upwards. At its highest point, its velocity is:
Anonymous Quiz
13%
Maximum
18%
Minimum
62%
Zero
7%
Constant
1
Which has highest lattice energy?
Anonymous Quiz
28%
NaCl
30%
KCl
34%
MgO
8%
CaO
What's the limit of (sin x)/x as x approaches 0?
Anonymous Quiz
14%
0
33%
49%
1
4%
Doesn't Exist
Which molecule has the smallest bond angle?
Anonymous Quiz
26%
H₂O
38%
NH₃
26%
CH₄
10%
BeCl₂
A satellite orbits Earth at radius 4R (R=Earth's radius). What's its orbital speed relative to a satellite at radius R?
Anonymous Quiz
20%
1/4
58%
1/2
15%
2
7%
4
Which molecule exhibits hydrogen bonding?
Anonymous Quiz
27%
CH4
38%
H2S
33%
NH3
3%
PH3
What is the limit of (sin x)/x as x approaches 0?
Anonymous Quiz
8%
0
68%
1
21%
Infinity
3%
Does not exist