Total internal reflection occurs in an optical prism when light rays
travel from the prism into an optically denser medium
are incident in the prism at an angle greater than the critical angle
are incident normally in the prism
travel from the prism to the air
Correct answer is B
No explanation has been provided for this answer.
Visible balance is also known as
Terms of trade
Balance of payments
Balance of trade
Capital balance
Correct answer is C
The visible trade balance is that part of the balance of trade figures that refers to international trade in physical goods, but not trade in services. It is also known as balance of payment in the current account balance.
1.48
1.50
1.53
1.67
Correct answer is C
n = \(\frac{\sin \frac{1}{2} (dm + A)}{\sin \frac{1}{2} A}\)
= \(\frac{\sin \frac{1}{2} (40 + 60)}{\sin \frac{1}{2} \times 60}\)
= 1.532
The image formed by a convex mirror is always
real, erect and diminished
real, inverted and diminished
virtual, inverted and diminished
virtual, erect and diminished
Correct answer is D
No explanation has been provided for this answer.
Where to produce
For whom to produce
How to produce
What to produce
Correct answer is C
The problem of how to produce refers to selection of techniques to be used for production of goods and services. By technique we mean labour or capital intensive techniques. That is knowing the input combination to be used.