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Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN_2023
The resistance of a wire is 5$\Omega$ . It’s new resistance in ohm if stretched to 5 times of it’s original length will be
JEE Main Physics Medium
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Q JEE MAIN 203
A body cools from $80^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in 5 minutes. The temperature of the surrounding is $20^{\circ} \mathrm{C}$. The time it takes to...
JEE Main Physics Medium
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Q JEE MAIN_2023
The average kinetic energy of a molecule of the gas is
JEE Main Physics Easy
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Q JEE MAIN 2023
Ratio of thermal energy released in two resistor R and 3R connected in parallel in an electric circuit is
JEE Main Physics Easy
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Q JEE MAINS 2024
Two conductors have the same resistances at but their temperature coefficients of resistance are and . The respective temperature coefficients for their series and parallel...
JEE Main Physics Hard
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Q JEE MAIN 2025
A cup of coffee cools from $90^{\circ} \mathrm{C}$ to $80^{\circ} \mathrm{C}$ in $t$ minutes when the room temperature is $20^{\circ} \mathrm{C}$. The time taken by...
JEE Main Physics Medium
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Q JEE MAIN 2025
The difference of temperature in a material can convert heat energy into electrical energy. To harvest the heat energy, the material should have
JEE Main Physics Easy
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Q JEE MAIN 2025
The temperature of a body in air falls from $40^{\circ} \mathrm{C}$ to $24^{\circ} \mathrm{C}$ in 4 minutes. The temperature of the air is $16^{\circ} \mathrm{C}$....
JEE Main Physics Medium
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Q JEE MAIN 2025
A wire of length 10 cm and diameter 0.5 mm is used in a bulb. The temperature of the wire is ${1727^\circ}{\rm{C}}$ and power radiated...
JEE Main Physics Medium
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Q JEE MAIN 2025
Three conductors of same length having thermal conductivity $\mathrm{k}_1, \mathrm{k}_2$ and $\mathrm{k}_3$ are connected as shown in figure. Area of cross sections of $...
JEE Main Physics Medium
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