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.
0.795m
0.625m
0.335m
0.125m
Correct answer is A
n = 200, S = 132 rev/min, v = 350m/s\(^2\)
| f | = | ns | = | 200 | × | 132 | rev
min |
× | 1min
60s |
= | 440Hz |
| λ | = | v
f |
= | 350
440 |
= | 0.795m |
A mixture of blue and red pigment when illuminated by white light will appear
green
orange
yellow
magenta
Correct answer is D
Mixing blue and red pigments in equal amount gives magenta when illuminated by white light
gets hotter
increase is mass
decreases in mass
changes to steam
Correct answer is D
Boiling indicates changes from Liquid to gas.
The lead-acid accumulator consists of
lead as the positive electrode
lead acid as the negative electrode
hydrochloric acid as the electrolyte
tetraoxosulphate (vi) acid as the electrolyte
Correct answer is D
- the positive pole is lead peroxide (PbO\(_2\))
- the negative pole is head
- the electrolyte is H\(_2\)SO\(_4\)
\(300^0C\)
\(200^0C\)
\(100^0C\)
\(-100^0C\)
Correct answer is D
L\(_1\) = 100cm, T\(_1\) = 200°C
L\(_2\) = 99.4cm, T\(_2\) = ?
α 2 × 10\(^{-5}\) C\(^{-1}\)