1
MHT CET 2026 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
For a two input logic gate, when the inputs are 'zero' and 'zero' the output is 'one'. When the inputs are 'one' and 'zero' the output is 'zero'. The type of logic gate is
A
NAND
B
OR
C
NOR
D
XOR
2
MHT CET 2026 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
In n-type semiconductor
A) pentavalent impurity are dopants and holes are majority carriers.
B) trivalent impurity are dopants and electrons are minority carriers.
C) pentavalent impurity are dopants and electrons are majority carriers.
D) trivalent impurity are dopants and holes are majority carriers.
A
A
B
C
C
B
D
D
3
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When LED is manufactured by using aluminium gallium arsenide (AlGaAs), it emits

A

ultra-violet light

B

infra red radiation

C

green light

D

blue light

4
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following figure represents forward bias diode?

MHT CET 2025 5th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 12 English
A

A

B

C

C

D

D

B

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