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.
30cm and virtual
6cm and real
6cm and virtual
30cm and real
Correct answer is A
F = \(\frac{uv}{u + v}\)
15 = \(\frac{10 \times v}{10 + v}\)
v = -30cm
0.13m
0.25m
0.28m
0.50m
Correct answer is C
v = 2.5u
F = \(\frac {uv}{u + v}\)
0.2 = \(\frac {u \times 2.5u}{u + 2.5u}\)
u = 0.28m
2 : 1
1 : 2
1 : 4
1 : 16
Correct answer is D
F = \(\frac{1}{2L}\)\(\sqrt\frac{T}{m}\)
\(\frac{F_1}{F_2}\) = \(\sqrt\frac{m_2}{m_1}\)
\(\frac{1}{4}\) = \(\sqrt\frac{m_2}{m_1}\)
\(\frac{m_2}{m_1}\) = \(\frac{1}{16}\)
A slight loading of a tuning fork has the effect of
decreasing its amplitude
increasing its amplitude
decreasing its frequency
increasing its frequency
Correct answer is C
When the prongs of the tuning fork are loaded, it causes an increase in their inertia, thereby decreasing the frequency of the fork.
170ms-1
340ms-1
600ms-1
680ms-1
Correct answer is D
Distance = 340 x 2 = 680ms-1