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.
is also uniform
must always be zero when the body stops accelerating
will increase with time in the direction of the acceleration
is equal to the quotient of distance travelled and time
is the product of the distance travelled and time
Correct answer is C
No explanation has been provided for this answer.
500,000N
500N
50N
5,000N
50,000N
Correct answer is C
F =\(\frac{m(v - u)}{T}\)
= \(\frac{0.01(5000 - 0)}{1}\)
= 50N
Which of the following statements is NOT true of \(\gamma\)-rays?
\(\gamma\)-rays belong to the electromagnetic spectrum
\(\gamma\)-rays do not carry an electron charge
\(\gamma\)-rays obey the inverse cube law in air
the thickness of aluminium which stops b-particule has a negligible effect on \(\gamma\)-radiation
the difference between \(\gamma\)-rays and X-rays is that \(\gamma\)-rays originate from energy charges in the nuclei of atoms, while X-rays comes from energy charges associated with the electron structure of atoms
Correct answer is C
No explanation has been provided for this answer.
decrease to zero
steadily increase
decrease to zero and then increase
remain constant
increase to a maximum and then decrease
Correct answer is B
No explanation has been provided for this answer.
10-2mm
10-3mm
10-4mm
10-5mm
10-6mm
Correct answer is E
m = Itz
density = \(\frac{\text{mass}}{\text{area x thickness}}\)
Density = \(\frac{Itz}{A \times h}\)
\(10^4 = \frac{0.5 \times 100 \times 60 \times 0.0003}{100 \times h}\)
h = 9 x 10-7cm = 9 x 10-6mm