4mm
18mm
30mm
135mm
450mm
Correct answer is C
by interpolation,
\(\frac{100 - 0}{10- 0} = \frac{180 - y}{45 - y}\)
\(\frac{100}{10} = \frac{180 -y}{45 - y }\)
450 - 10y = 180 - y
- 9y = - 270
y = 30mm
An object is heated from 30°C to 57°C. The increase in its temperature on the Kelvin scale is
17k
27k
81k
246k
300k
Correct answer is B
30°C + 273 = 303K
57°C + 273 = 330K
∆T = 330K - 303K
→ 27K
half way between the equator and the north pole
near the equator
half way between the equator and the south pole
at either pole
at the equator
Correct answer is C
No explanation has been provided for this answer.
120m
138m
274m
1200m
120,000m
Correct answer is D
pressure change for air = pressure change for mercury
hpg = Hpg
h x 0.00136 x g = (75 - 63) x 13.6 x g
h = \(\frac{12 \times 13.6}{0.00136}\)
= 120,000cm
= 1,200m
PR/PQ
OR/PQ
OR/PR
PQ/PR
PQ/QR
Correct answer is E
No explanation has been provided for this answer.