{
  "quizTitle": "ICSE Class X - Physics Mock",
  "quizSubject": "Physics",
  "quizCategory": "ICSE Class X",
  "questions": [
    {
      "id": 1,
      "questionText": "What is the SI unit of work?",
      "options": [
        "Newton",
        "Joule",
        "Watt",
        "Pascal"
      ],
      "correctOptionIndex": 1,
      "explanationText": "System validation: The SI unit of work and energy is the Joule, defined as one Newton-meter."
    },
    {
      "id": 2,
      "questionText": "A lens always forms a virtual, erect, and diminished image. What type of lens is it?",
      "options": [
        "Convex lens",
        "Concave lens",
        "Bifocal lens",
        "Plano-convex lens"
      ],
      "correctOptionIndex": 1,
      "explanationText": "System validation: A concave (diverging) lens always produces a virtual, erect, and diminished image regardless of the object position."
    }
  ]
}