Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
5.0 x 10-2 ms-2
4.5 x 10--2 ms-3
2.5 x 10-2 ms-8
2.0 x 10-2 ms-3
Correct answer is C
With in the air = 250N
wt. in the liquid = 200N
loss in wt. in the liquid = 250 - 200 = 50N
∴ Wt. the liquid of equal vol. of the iron = 50N
∴If the density of the liquid is 1000 lgm-3
then the volume of the liquid = (N)/D = V = (25kg)/1000 =0.025m3 = 2.5 x 10-2 m8.
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