at the centre of curvature
at the principal focus
between the pole and principal focus
between the centre of curvature and principal focus
Correct answer is A
No explanation has been provided for this answer.
Which of the following is true about import substitution? It
Helps in increasing exportation
Is meant to reduce exportation
Enables a country to curtail importation
Enables a country to improve on importation
Correct answer is C
Import substitution is a policy advocating for replacing foreign imports with domestic production. It is aimed at reducing the importation of foreign goods.
0.001s
0.010s
10.000s
100.000s
Correct answer is B
Compare: Y = 2 sin 2 \(\pi (\frac{t}{0.01} - \frac{x}{30})\)
with the wave equation,
y = A sin 2 \(\pi (\frac{t}{T} - \frac{x}{\lambda}\))
⇒ \(\frac{t}{T} = \frac{t}{0.01}\)
T = 0.010s
When there is improvement in a country's terms of trade, it means that the country's
Exports are cheaper relative to imports
Imports are cheaper relative to exports
Volume of imports has declined
Volume of exports has declined
Correct answer is B
Terms of trade (TOT) represent the ratio between a country's export prices and its import prices. If a country's terms of trade improve, it means that for every unit of exports sold it can buy more units of imported goods.
When salt is dissolved in water, the freezing point of the water
increases
decreases
remains the same
increases and later decrease
Correct answer is B
The salt in the water (same for any other impurities) lowers the freezing point of the solution so that water freezes at a lower temperature.