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.
10 J
20 J
30 J
50 J
Correct answer is C
Using, v2 = u2 - 2gx
(20)2 = u21/2 x 10 x 10
u2 = 600(m/s)2
initial K.E = - mu2
= \(\frac{1}{2}\) x 600
= 30 J
1 : 5
2 : 5
3 : 5
4 : 5
Correct answer is B
g = \(\frac{GM}{R^2}\)
\(\frac{G_1M_1}{r^2_1}\) = \(\frac{G_2M_2}{r^2_2}\)
\(\frac{G_1M_1}{r^2_1}\) = \(\frac{G_2 {\times}10 M_1}{(2r_1)^2}\)
\(\frac{G_1}{G_2}\) = \(\frac{2}{5}\)
15N
20N
35N
45N
Correct answer is C
F = mg + ma
F = 2 [10 + \(\frac{(40 - 10)}{4}\)]
F = 35 N
Which of the following with respect to a body performing simple harmonic motion are in phase?
displacement and velocity of the body
displacement and force on the body
velocity and acceleration of the body
force acting on the body and the acceleration
Correct answer is C
No explanation has been provided for this answer.
1:1
1:2
√3:1
√3
Correct answer is A
Range = \(\frac{U^2sin2{\theta}}{g}\)
\(\frac{R_x}{R_y}\) = \(\frac{U^2_xsin60}{U^2_ysin120}\)
sin60o = sin120o
\(\frac{R_x}{R_y}\) = \(\frac{1}{1}\)
hence, = 1:1