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Physics

General

Easy

Question

The current gain of a transistor is 100 . If the base current changes by 200 $eta straight A$ , What is the change in collector current?

20 mA
200 mA
2 mA
0.2 mA

The correct answer is: 20 mA

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A tank contains two different liquids which do not mix with each other as shown in figure. The lower and upper liquids are at depths $h subscript 1 end subscript$ and $h subscript 2 end subscript$ respectively. An object O is located at the bottom. When seen vertically from above, locate the position of image of O.

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