Engineer & Medical

Exam 2011 Chemistry question bank (Chemistry)

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Q1.

The following four wires of length $L$ and radius $r$ are made of the same material. Which of these will have the largest extension,when the same tension is applied?

(A)
$L = 100 \ cm, r = 0.2 \ mm$
(B)
$L = 200 \ cm, r = 0.4 \ mm$
(C)
$L = 300 \ cm, r = 0.6 \ mm$
(D)
$L = 400 \ cm, r = 0.8 \ mm$
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Q2.

The output of the given logic circuit is

figure

(A)
$A \cdot (B + C)$
(B)
$A \cdot (B \cdot C)$
(C)
$(A + B) \cdot (A + C)$
(D)
$A + B + C$
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