Which of the following measure can be adopted to stabilize the external value of the local currency?
Reduce the volume of export
Increase the demand for imports
Increase domestic money supply
Reduce the demand for imports
Correct answer is D
A rise in imports has a negative effect on the balance of trade, that is, it will tend to increase the trade deficit or reduce the trade surplus.
3.0\(ms^{-1}\)
4.5\(ms^{-1}\)
6.0\(ms^{-1}\)
18.0\(ms^{-1}\)
Correct answer is C
Given that \(u = 0ms^{-1}, a = 2ms^{-2}, s = 9m\)
We can use the equation, \(v^{2}=u^{2} +2as\) so that we have,
\(v^{2} = 0^{2} + 2\times 2\times 9\)
\(v^{2} = 36; v= 6.0ms^{-1}\)
Note; u = Initial velocity
v = final velocity
a = acceleration
s = distance covered
Which of the following is the dimension for impulse?
MLT\(^{-1}\)
MLT\(^{-2}\)
MLT
ML
Correct answer is A
Impulse = Force \(\times\) time
Force has the dimension \(\frac{ML}{T^{2}}\), hence
Impulse= \(\frac{ML}{T^{2}} \times T = \frac{ML}{T}\)
The diagram above is a micrometer screw gauge. Determine its reading
2.44mm
2.46mm
2.86mm
2.96mm
Correct answer is B
No explanation has been provided for this answer.
A nuclide is represented by \(_{32}^{70}B\). Determine its neutron-proton ratio
0.5
0.8
1.2
1.5
Correct answer is C
The element B has a mass number of 70 with atomic number 32. Hence, B has 32 protons and (70-32) = 38 neutrons.
The neutron- proton ratio is 38:32 = \(\frac{38}{32} = 1.1875\)
\(\approxeq 1.2\)
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