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JEE MAIN 2026
23-01-2026 S1
Question
A cup of water at $5^{\circ} \mathrm{C}$ (system) is placed in a microwave oven and the oven is turned on for one minute during which the water begins to boil. Which of the following option is true ?
Select the correct option:
A
$\mathrm{q}=+\mathrm{ve}, \mathrm{w}=0, \Delta \mathrm{U}=-\mathrm{ve}$
B
$q=+v e, w=-v e, \Delta U=+v e$
C
$q=-v e, w=-v e, \Delta U=-v e$
D
$q=+v e, w=-v e, \Delta U=-v e$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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