SuperCoaching AE/JE by Testbook
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A body's KE increases by 300%. Momentum increases by:
Anonymous Quiz
39%
100%
30%
173%
9%
50%
22%
150%
Which shows highest hydration energy?
Anonymous Quiz
30%
MgCl₂
46%
CaCl₂
17%
BaCl₂
7%
SrCl₂
A ball is dropped from height H. It bounces to H/2, then H/4. Total distance till rest is:
Anonymous Quiz
14%
H
56%
2H
20%
3H
9%
A car accelerates uniformly from rest. Velocity is proportional to:
Anonymous Quiz
27%
Displacement
48%
Square root of displacement
18%
Time
8%
Square root of time
A carnot engine operates between 600K & 300K. If it absorbs 1000J heat, what is the work done?
Anonymous Quiz
19%
500J
48%
600J
18%
250J
14%
300J
A disc rolls without slipping. Fraction of KE that is rotational is:
Anonymous Quiz
24%
1/4
40%
1/3
32%
1/2
5%
2/3
2
If f(x) = x³ + x -1, find the number of real roots.
Anonymous Quiz
14%
0
52%
1
25%
2
9%
3
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𝐌𝐚𝐱𝐢𝐦𝐢𝐳𝐞 𝐲𝐨𝐮𝐫 𝐏𝐨𝐭𝐞𝐧𝐭𝐢𝐚𝐥 & 𝐔𝐧𝐥𝐨𝐜𝐤 𝐘𝐨𝐮𝐫 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐰𝐢𝐭𝐡 𝐨𝐮𝐫 𝐒𝐒𝐂 𝐉𝐄 𝐆𝐒𝐏 𝐂𝐨𝐮𝐫𝐬𝐞𝐬
🎯𝐒𝐒𝐂 𝐉𝐄 𝟐𝟎𝟐𝟔 𝐆𝐒𝐏 𝐂𝐢𝐯𝐢𝐥 - https://link.testbook.com/e/GSPCIVIL
🎯𝐒𝐒𝐂 𝐉𝐄 𝟐𝟎𝟐𝟔 𝐆𝐒𝐏 𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐚𝐥 - https://link.testbook.com/e/GSPELECTRICAL
🎯𝐒𝐒𝐂 𝐉𝐄 𝟐𝟎𝟐𝟔 𝐆𝐒𝐏 𝐌𝐞𝐜𝐡𝐚𝐧𝐢𝐜𝐚𝐥 - https://link.testbook.com/e/GSPME
A car accelerates from rest at α then decelerates at β to rest. If total time is t, find total distance.
Anonymous Quiz
25%
αβt²/(2(α+β))
49%
(α+β)t²/2αβ
20%
αβt²/(α+β)
5%
(α+β)t²/αβ
A spring of force constant k is cut into lengths l1:l2=2:3. The force constant of the longer piece is?
Anonymous Quiz
13%
5k/2
52%
5k/3
32%
2k/5
3%
3k/5