CAT Question of the Day The following question has a paragraph from which the last sentence has been deleted. From the given options, choose the one that completes the paragraph in the most appropriate way.
The idea of entropy is fundamentally an intuitive one - that the Universe tends in general to a more disordered state. The classic example is a dropped cup: it will smash into pieces, but those pieces will never spontaneously recombine back into a cup. Analogously, a hot cup of coffee will always cool down if left - it will never draw warmth from a room to heat back up._______________________________________.
| OPTIONS | | |  | 1) | The idea of entropy describes the way in which the Universe heads inexorably toward a higher state of disorder. | | | 2) | Systems maximise entropy in the present and the future. | | | 3) | Physical system not only maximises the entropy within its current conditions, but that it reaches a state that will allow it more entropy in the future. | | | 4) | Entropy cannot explain how systems evolved in the first place, and why it seeks to maximise disorder. |
Tip of the Day While solving question types based on grammar rules involving multiple statements as part of the same question, the analysis of one of those statements can help in eliminating a few options and reduce the effort of analysing all the statements. Last year's Question of the day (11-Jul-12) Consider the following three polynomials,
P1(x) = ax2 – bx – c,
P2(x) = bx2 – cx – a,
P3(x) = cx2 – ax – b,
Here a, b and c are non-zero real numbers.
Let there exists a real number α, such that P1(α) = P2(α) = P3(α), then which of the following is definitely true?
| OPTIONS | | | | | 1) | ab + bc + ca = 0 | | | 2) | a3 + b3 + c3 = 0 | | | 3) | a = b = c | | | 4) | a + b + c = 0 |
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