SuperCoaching AE/JE by Testbook
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A pendulum's period doubles. By what factor did its length increase?
Anonymous Quiz
22%
1/4
52%
1/2
16%
2
9%
4
1
A ball dropped from a height 'h' rebounds to h/2. The coefficient of restitution is:
Anonymous Quiz
23%
1/2
29%
√2
42%
1/√2
6%
1/4
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2
A ball thrown upwards reaches max height in 2s. What's its initial velocity?
Anonymous Quiz
28%
9.8 m/s
48%
19.6 m/s
21%
4.9 m/s
3%
39.2 m/s
Which molecule has the highest bond dissociation energy?
Anonymous Quiz
23%
Cl₂
51%
Br₂
14%
I₂
12%
F₂
👍1
What's the limit of (sin x)/x as x approaches 0?
Anonymous Quiz
16%
0
54%
1
30%
0%
Does not exist
A ball bounces to 80% of its initial height. What % of its initial energy is lost?
Anonymous Quiz
10%
80%
68%
20%
17%
36%
4%
64%