Import Question JSON

Current Question (ID: 20530)

Question:

$\text{Consider the following Assertion and Reason:}$ $\text{Assertion (A): Moving magnet in conducting pipe slows down.}$ $\text{Reason (R): Because eddy current is formed.}$

Options:

1. $\text{(A) is correct but (R) is wrong.}$
2. $\text{Both (A) and (R) are wrong.}$
3. $\text{Both (A) and (R) are correct.}$
4. $\text{(A) is wrong but (R) is correct.}$

Solution:

$\text{Moving magnet in conducting pipe causes change in flux and hence induced emf.}$ $\text{This emf causes eddy current in conducting pipe in such a way that it tries to oppose the change in flux, therefore magnet slows down.}$

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}