AIPMT 2007 | Semiconductor Electronics Question 76 | Physics

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AIPMT 2007

MCQ (Single Correct Answer)

-1

In the following circuit, the output Y for all possible inputs A and B is expressed by the truth table.

AIPMT 2007 Physics - Semiconductor Electronics Question 56 English

$$\matrix{ A & B & Y \cr 0 & 0 & 1 \cr 0 & 1 & 1 \cr 1 & 0 & 1 \cr 1 & 1 & 0 \cr } $$

$$\matrix{ A & B & Y \cr 0 & 0 & 1 \cr 0 & 1 & 0 \cr 1 & 0 & 0 \cr 1 & 1 & 0 \cr } $$

$$\matrix{ A & B & Y \cr 0 & 0 & 0 \cr 0 & 1 & 1 \cr 1 & 0 & 1 \cr 1 & 1 & 1 \cr } $$

$$\matrix{ A & B & Y \cr 0 & 0 & 0 \cr 0 & 1 & 0 \cr 1 & 0 & 0 \cr 1 & 1 & 1 \cr } $$

AIPMT 2007

MCQ (Single Correct Answer)

-1

For a cubic crystal structure which one of the following relations indicating the cell characteristics is correct ?

a $$ \ne $$ b $$ \ne $$ c and $$\alpha $$ = $$\beta $$ = $$\gamma $$ = 90^o

a = b = c and $$\alpha $$ $$ \ne $$ $$\beta $$ $$ \ne $$ $$\gamma $$ = 90^o

a = b = c and $$\alpha $$ = $$\beta $$ = $$\gamma $$ = 90^o

a $$ \ne $$ b $$ \ne $$ c and ;$$\alpha $$ $$ \ne $$ $$\beta $$ $$ \ne $$ and $$\gamma $$ = 90^o

AIPMT 2007

MCQ (Single Correct Answer)

-1

In the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons respectively. The material is

AIPMT 2007 Physics - Semiconductor Electronics Question 54 English

AIPMT 2007 Physics - Semiconductor Electronics Question 54 English

an insulator

a metal

an n-type semiconductor

a p-type semiconductor.

AIPMT 2006

MCQ (Single Correct Answer)

-1

The following figure shows a logic gate circuit with two inputs A and B and the output C.

AIPMT 2006 Physics - Semiconductor Electronics Question 53 English 1

The voltage waveforms of A, B and C are as shown below.

AIPMT 2006 Physics - Semiconductor Electronics Question 53 English 2

The logic circuit gate is

OR gate

AND gate

NAND gate

NOR gate

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