2023 · Paper 2

📄 Exact Digital Copy of Official Paper II Question Booklet (Unanswered Exam Format • 2025 Syllabus Mapped)

AGA KHAN UNIVERSITY EXAMINATION BOARD

SECONDARY SCHOOL CERTIFICATE

CLASS X

ANNUAL EXAMINATIONS (THEORY) 2023

Physics Paper II

Time: 1 hour 50 minutes Marks: 25

INSTRUCTIONS

Please read the following instructions carefully.

1. Check your name and school information. Sign if it is accurate.

I agree that this is my name and school.
Candidate's Signature

RUBRIC

2. There are SEVEN questions. Answer ALL questions. Questions 6 & 7 each offer TWO choices. Attempt any ONE choice from each.

3.   When answering the questions:
      Read each question carefully.
      Use a black pointer to write your answers. DO NOT write your answers in pencil.
      Use a black pencil for diagrams. DO NOT use coloured pencils.
      DO NOT use staples, paper clips, glue correcting fluid, or ink erasers.
      Complete your answer in the allocated space only. DO NOT write outside the answer box.

4. The marks for the questions are shown in brackets ( ).

5. You may use a simple calculator if you wish.

Physics Paper II • CLASS X (2023)Total 6 Examination Items • SLO Mapped

Q.1.

Write the name and draw the flowchart symbol in front of each description in the given table.

Description	Name	Flowchart Symbol
All the calculations appear inside this symbol.
It is used to connect various flowchart symbols.

(Total 2 Marks)

2025 Syllabus: SLO 9.1.2 • Computational Thinking and Algorithm ↗Cognitive Level: Understanding

2025 SLO Outcome (9.1.2): draw flowcharts related to SLO # 9.1.1.

Q.2.

A C program is written to take three integers with different values as an input and also identify the largest number amongst them.

Write the missing code in the given box to achieve the mentioned task.

CSource Code

#include <stdio.h>
int main() {
  int n1, n2, n3;
  printf("Enter three different numbers: \n");
  scanf("%d %d %d", &n1, &n2, &n3);

  /* Write missing conditional code here */

  return 0;
}

(Total 3 Marks)

2025 Syllabus: SLO 10.4.3 • Programming in JavaScript ↗Cognitive Level: Application

2025 SLO Outcome (10.4.3): write JavaScript code to implement the following statements: a. if statement, b. if-else statement, c. if-else or if-else-if, d. switch statement;

Q.3.

Consider the following C program.

CSource Code

#include <stdio.h>
int main() {
  int m=27;
  int n=36;
  do
  {
    printf("\n%d", n);
    n-=3;
  }
  while (m<n);
  return 0;
}

Complete the trace table for the given program.

`m`	`n`	Output
27	36

(Total 3 Marks)

2025 Syllabus: SLO 10.5.4 • Programming in JavaScript ↗Cognitive Level: Application

2025 SLO Outcome (10.5.4): write the output of a given program having a loop and selection structures;

Q.4.

Two switches, L and M, send values of 0 and 1 to a logic circuit respectively. Value X is the output of the logic circuit.

Output X has a value of 1 with the following conditions:

Architecture / Topology Diagram

Switch L sends value 1 AND switch M sends value 0
                      OR
Switch L sends value 0 AND switch M sends value 0
                      OR
Switch L sends value 1 AND switch M sends value 1

i. Draw the logic circuit to represent the given conditions.

ii. Complete the truth table for the logic circuit drawn in part i.

(Note: Show your working in the given working space. Without working NO mark will be awarded.)

L	M	Working Space	X
0	0
0	1
1	0
1	1

(Total 5 Marks)

Out of 2025 SyllabusCognitive Level: Application

Q.5.

EITHER (a): Write a C program to print the salary of an employee according to the given conditions.

(Note: Take years of service and gender as an input.)

Gender	Years of Service	Salary
Male	`>= 5`	`150000`
Male	`< 5`	`100000`
Female	`>= 5`	`200000`
Female	`< 5`	`150000`

OR (b): Write a C program to

i.take a number n as an input.

ii.print n even numbers.

iii.print the sum of those even numbers.

(Total 6 Marks)

2025 Syllabus: SLO 10.4.3 • Programming in JavaScript ↗Cognitive Level: Application

2025 SLO Outcome (10.4.3): write JavaScript code to implement the following statements: a. if statement, b. if-else statement, c. if-else or if-else-if, d. switch statement;

Q.6.

EITHER (a):

i.Describe authentication and authorisation. (2 Marks)

ii.Describe TWO methods for Two Factor Authentication (2FA). (4 Marks)

OR (b): Describe the following types of hackers:

i.White Hat Hacker (2 Marks)

ii.Black Hat Hacker (2 Marks)

iii.Green Hat Hacker (2 Marks)

(Total 6 Marks)

Out of 2025 SyllabusCognitive Level: Understanding

S2502-1721120END OF PAPERPhysics Paper II

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