👍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
A sub-shell with n = 6 , l = 2 can accommodate a maximum of
Anonymous Quiz
44%
12 electron
32%
16 electron
15%
26 electron
9%
10 electron
😁3❤2
👏4
A cyclist goes round a circular path of circumference 343 m in s. The angle made by him, with the vertical is
Anonymous Quiz
30%
420
33%
430
26%
440
11%
450
👍1
A coin kept on a rotating gramophone disc just begins to slip if its centre is at a distance of 8 cm from the centre of the disc. The angular velocity of the gramophone disc is then do should be shifted towards the centre, so that the coin will just slip?
Anonymous Quiz
22%
2cm
41%
6cm
30%
16cm
7%
5cm