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Communication Systems — JEE Main Physics MCQs with Solutions
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Sample questions with solutions
Q1 — medium · theory
In the given circuit, the breakdown voltage of
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q2 — medium · theory
The logic gate equivalent to the given circuit
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q3 — medium · theory
In the given circuit the input voltage Vin is
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q4 — medium · theory
Which one of the following will be the output of (1) Statement-I is true but Statement-II is
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q5 — medium · theory
(2) 24-2. (3) ANSWER KEY 24-4. (3) 24-5. (3)
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q6 — medium · theory
(2) 23-2. (2) 23-4. (1) 23-5. (1)
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q7 — medium · theory
In + ve half cycle
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q8 — medium · theory
air 1 3
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q9 — medium · theory
A Zener diode of breakdown voltage 10 V is
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q10 — medium · theory
For the given logic gates combination, the 23-5. SOLID & SEMICONDUCTORS
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q11 — medium · theory
Identify the logic operation carried out. true.
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q12 — medium · theory
(1) 22-3. (1) 23-8. (1) 21-2. (2) 21-3. (2)
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q13 — medium · theory
23-2.
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q14 — medium · numerical
When both A and B have logical value ‘1’ both
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q15 — medium · theory
In the given circuit, the voltage across load
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q16 — medium · theory
The resistivity () of semiconductor varies
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q17 — medium · theory
A logic gate circuit has two inputs A and B SOLID & SEMICONDUCTORS
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q18 — medium · theory
Find the truth table for the function Y of A and
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q19 — medium · theory
By making Truth table y (A A B) (B A B)
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q20 — medium · theory
2 x D
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q21 — medium · theory
Identify the logic operation performed by the
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q22 — medium · theory
The logic operations performed by the given
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q23 — medium · theory
Statement-I : By doping silicon
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q24 — medium · theory
(1) 21-5. (4) 23-13. (3) 21-7. (3) 24-6. 5
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q25 — medium · theory
14 22-5. 25 21-1. (4) 22-7. 480 22-8. 9
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q26 — medium · theory
As m, e, are constant
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q27 — medium · theory
The truth table for the given circuit will be
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q28 — medium · numerical
I 4I0 cos2 = 600 nm
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q29 — medium · theory
The output of the given circuit diagram is
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q30 — medium · numerical
Fringe shift = t( 1) B B 4 2 4 cos60º
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D