SuperCoaching AE/JE by Testbook
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1
Which has highest molar conductivity?
Anonymous Quiz
20%
0.01M NaCl
37%
0.1M NaCl
38%
0.01M Acetic Acid
5%
0.1M Acetic Acid
A body projected vertically upwards reaches height 'h'. Time to return is:
Anonymous Quiz
19%
√(h/g)
42%
2√(h/g)
31%
√(2h/g)
7%
2√(2h/g)
A rod's length changes by 2% for 50°C rise. α is?
Anonymous Quiz
17%
4x10⁻⁴/°C
45%
4x10⁻⁵/°C
27%
2x10⁻⁴/°C
11%
2x10⁻⁵/°C
A disc rolls w/o slipping. Ratio of translational KE to total KE is:
Anonymous Quiz
16%
1
52%
1/2
25%
2/3
7%
1/3
1
A ball of mass 'm' moving with velocity 'v' undergoes head-on elastic collision with another identical ball at rest. What is the velocity of the first ball after impact?
Anonymous Quiz
13%
v
46%
2v
17%
0
24%
v/2