Qualification > Sciences
ALL CIE PHYSICS DOUBTS HERE !!!
angel_ak:
I need help in this question as well..
i did part a..
but din understand part b at all :(
ashwinkandel:
For the first question: C = aT + bT3
If the equation is valid then it is homogeneous. That means every terms should have same unit.
so unit of at= unit of c which implies that unit of a is unit of c divided by unit of T
Similarly, Find the unit for b
angel_ak:
ohhh right!
that was quite simple.. i don know why i din come up wid the right sol :'(
astarmathsandphysics:
tug boat answer
angel_ak:
A student uses a micrometer to measure the diameter of a wire of length (10 +- 0.1)cm. The values obtained are 1.05mm, 1.04mm, and 1.09mm. Which of the followinf best expresses the volume of the wire?
A. 9 x 10-8 m3
B. 8.8247 x 10-8 m3
C. 8.825 x 10-8 m3
D. 8.8 x 10-8 m3
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