😱11
👍1🥰1
👍3👏1
👍1😁1
The displacement in metres of a body varies with time t in second as y = t2 – t – 2. The displacement is zero for a positive of t equal to
Anonymous Quiz
22%
1s
53%
2s
18%
3s
6%
4s
A 180 metre long train is moving due north at a speed of 25 m/s. A small bird is flying due south, a little above the train, with a speed of 5 m/s. The time taken by the bird to cross the train is
Anonymous Quiz
23%
3s
44%
6s
27%
9s
7%
12s
👍2
A body starts from rest and travels for t second with uniform acceleration of 2 m/s². If the displacement made by it is 16 m, the time of travel t is
Anonymous Quiz
27%
4s
37%
9s
29%
5s
7%
7s
👍4👎1
In a system of units if force (F), acceleration (A) and time (T) are taken as fundamentals units then the dimensional formula of energy is
Anonymous Quiz
34%
FAT
28%
FA2T
24%
F2AT
13%
FAT2
👍3
The dimensions of kinetic energy is same as that of
Anonymous Quiz
19%
Force
20%
Pressure
53%
Work
8%
Momentum
❤4
Which of the following element has least number of electrons in its M-shell?
Anonymous Quiz
39%
K
33%
Mn
18%
Ni
10%
S
👍3🔥2
In the ground state, an element has 13 electrons in its M-shell. The element is_____
Anonymous Quiz
29%
Copper
42%
Chromium
23%
Nickel
6%
Sulphur
🥰2👏1