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Principles of Communication: Modulation (AM/FM) and Demodulation MCQs

Prepare for Principles of Communication: Modulation (AM/FM) and Demodulation MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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Topic Notes: Physics

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Practice Physics MCQs to prepare for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests in Pakistan. This section covers key theoretical concepts, syllabus topics, and repeated past paper questions related to Physics.

Topic-Wise Breakdown
Structured subject modules organized by difficulty and exam frequency.
Verified Answer Keys
Detailed explanations cross-referenced with standard textbooks and commission keys.
Complete Coverage
Covers fundamental definitions, advanced problem-solving, and recent exam trends.

How to Prepare Physics MCQs for Competitive Exams

Review each sub-topic systematically. Start with fundamental concepts, practice multiple-choice question sets under timed conditions, and note down questions you missed in your revision tracker. Select a specific topic from the list below to begin practice.

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327631
If each even digit is divided by 2 and 2 is added to each odd digit in the number 4723361, what will be the sum of the largest and the smallest digits thus formed? (a) 12 (b) 10 (c) 11 (d) 9
327632
When $19^{300}$ is divided by 20, find the remainder. (a) 2 (b) 1 (c) 3 (d) 4
327633
If 3 is added to each odd digit and 2 is subtracted from each even digit in the number 6452851, what will be the difference between the largest and smallest digits thus formed? (a) 8 (b) 6 (c) 4 (d) 2
327634
If $3x^2 + ax + 4$ is perfectly divisible by $x - 5$, then the value of a is: (a) - 12 (b) - 5 (c) - 15.8 (d) - 15.6
327635
What is the value of the digits A and B? $BA \times B3 = 57A$ (a) A = 2, B = 4 (b) A = 3, B = 5 (c) A = 5, B = 2 (d) A = 5, B = 3
327636
Find the largest number of four digits that is completely divisible by 49. (a) 9998 (b) 9994 (c) 9992 (d) 9996
327637
When the number $(5)^{501}$ is divided by 126 then the remainder will be? (a) 117 (b) 121 (c) 89 (d) 125
327638
$276x1$ is divisible by 3. What is the sum of the possible values of x? (a) 18 (b) 21 (c) 12 (d) 15
327639
If the 8-digit number $3x5479y4$ is divisible by 88 and the 8-digit number $425139z2$ is divisible by 9, then find the maximum possible value of $(3x + 2y – z)$. (a) 33 (b) 37 (c) 25 (d) 35
327640
Which of the following numbers is NOT divisible by 8? (a) 35792 (b) 35112 (c) 35412 (d) 35552