1
MHT CET 2023 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For the diagram shown, the resistances between points A and B when ideal diode D is forward biased is '$$R_1$$' and that when reverse biased is '$$R_2$$'. The ratio $$R_1: R_2$$ is

MHT CET 2023 10th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 54 English

A
2 : 1
B
1 : 1
C
1 : 2
D
1 : 4
2
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

To obtain the truth-table shown, from the following logic circuit, the gate G should be

MHT CET 2023 10th May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 52 English

A
AND
B
NAND
C
OR
D
NOR
3
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In insulators

A
valence band is empty and conduction band is filled with electrons.
B
conduction band is empty and valence band is completely filled with electrons.
C
valence band is partially filled.
D
conduction band is partially filled with electrons.
4
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the mismatch out of the following.

A
Zener diode - voltage regulator.
B
Photodiode-optocouplers.
C
Solar cell - Electrical energy into light.
D
Light emitting diode - optical communication.
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