Which of the following is a Pythagorean triplet?
1). 8, 15, 17
2). 17, 21, 29
3). 7, 9, 11
4). 2, 3, 5
The square of 11111 is:
1). 1234321
2). 1223311
3). 123454321
4). 321231
The unit of momentum is:
1). $Kgms^{2}$
2). $Kgms^{-1}$
3). $Kgms$
4). $Kgms^{-2}$
An object weighing 20 kg is raised through a height of 2 m. What will be the work done
by the force of gravity in this process ?
(Take g = 10 $m/s^2$)
1). 400 J
2). 50 J
3). 40 J
4). 100 J
Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic
Table ?
1). Scandium
2). Gallium
3). Titanium
4). Germanium