Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 89

91. The circuit diagram shown here corresponds to the logic gate,

[NEET Odisha 2019]

(a) NAND

(b) NOR

(c) AND

(d) OR

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Answer:

Correct Answer: 91. (d)

Solution:

  1. (d) We assume that at any instant thickness of ice is $x$. And time taken to form additional thickness $(d x)$ is $d t$.

$mL=\frac{KA[26-0] d t}{x}$

$\Rightarrow(A d x) \rho L=\frac{KA(26) d t}{x}$

So, $\frac{d x}{d t}=\frac{26 K}{x \rho L}$