Physics
General
Easy
Question
In a P-N junction, there is no appreciable current if.....
- a potential difference is applied across the junction
- it is impossible
- P-section is a made positive and N-section negative
- a potential difference is applied across junction making P section negative and N-section positive
The correct answer is: a potential difference is applied across junction making P section negative and N-section positive
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The figure given below depicts a diagrammatic sectional view of the female reproductive system of humans. Which one set of three parts out of I-VI have been correctly identified ?
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-A P-N junction is said to be forward based when
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When P-N junction diode is forward based, then.,
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Which of the following sequence is correct?
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Following illustration depicts the mechanism of breathing. In which of the following option all the parts A, B, C and D are correctly labelled?
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The change from II to III indicates the
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The change from II to III indicates the
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Respiration involving following steps -
A. Diffusion of gases and across alveolar membrane
B. Transport of gases by blood
C. Utilization of by cell for catabolic reactions and resultant release of
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The correct sequence of steps is -
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A. Diffusion of gases and across alveolar membrane
B. Transport of gases by blood
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The correct sequence of steps is -
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A bird in air looks at a fish vertically below it and inside water, is the height of the bird above the surface of water and , the depth of the fish below the surface of water. If refractive index of water with respect to air be n , then what is the distance of the fish observed by the bird
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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 and 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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Maths-
At any point on a curve if the subtangent and subnormal are equal then at that point the length of the tangent is equal to
For such questions, we should know the formula of length of tangent, subnormal and subtangent.
At any point on a curve if the subtangent and subnormal are equal then at that point the length of the tangent is equal to
Maths-General
For such questions, we should know the formula of length of tangent, subnormal and subtangent.