Sumit, a teenager, enjoys playing his music loudly. However, his grandmother consistently lowers the volume of the music player. Analyze the wave to identify which characteristic of the wave has been altered when the grandmother reduces the volume.

1. The length PS becomes more.
2. The length SR becomes less.
3. The length QR becomes less.
4. The length PR becomes less.

Data:
mass =10 g
quantity of heat supplied =120 J
rise in temperature = 10 °C

Statement A : The heat capacity of the substance is 12 J/g.

Statement B : The specific heat capacity of the substance is 1.2 J/gK.

1. Only statement A is correct.
2. Only statement B is correct.
3. Both statements A and B are correct.
4. Both statements A and B are incorrect.

Assertion (A) : A switch will serve the purpose of making and breaking a circuit when it is connected to the neutral wire.

Reason(R) : Neutral wire is at zero potential.

1. Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion
2. Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion
3. Assertion is true, but the Reason is false.
4. Both Assertion & Reason are false.

The given rods will attract each other when:

1. A and C are connected to positive terminal of the battery.
2. B and C are connected to the positive terminal of the battery.
3. A and D are connected to the positive terminal of the battery.
4. A and D are connected to the negative terminal of the battery.