4.72 x 106 Nm-2
4.36 x 106 Nm-2
4.28 x 106 Nm-2
4.25 x 106 Nm-2
Correct answer is D
In general, pressure varies with depth in the relation p = lgh
= 850 x 10 x 500
= 4250000
= 4.25 x 106 NM-2
60%
50%
40%
2%
Correct answer is B
Efficiency = (M.A)/V.R X (100)/1
But M.A = (Load)/Effort = (1600)/800 = 2
Efficiency = (2)/4 x (100)/1 = 50%
3.50 x 10-10N
3.71 x 10-8 N
3.57 x 10-2N
4.00 x 102N
Correct answer is B
The force of attraction between the two spheres is given by F (GM1 M2)/r2 = (6.67X 10-11 X5X10)/(0.3)2
= 3.71 X 10-8N.
4.8 x 104 N
4.8 x 103 N
1.2 x 103 N
1.2 x 102 N
Correct answer is A
Centipetal force of the car = ma = (MV)2/r
= (1500 x 40 x40)/50
= 48000 = 4.8 x 104 N
0.4\(\pi\) rads-2
0.8\(\pi\) rads-2
1.3\(\pi\) rads-2
20.0\(\pi\) rads-2
Correct answer is B
From the radiation:
V = +at, and if it starts from N & T, U = 0
And for angular motion, W = O + at
4R = aχ5
∴ a = (4a)/5 = 0. 8\(\pi\) rads-2