Three metals, A, B and C, are supplied with the same quantity of heat. Their masses are in the ratio 2 : 3 : 4. If they show the same rise in the temperature, then the ratio of their thermal capacities will be:

1. 1:1:1
2. 4:3:2
3. 2:3:4
4. 2:3:1

The below diagram shows different copper conductors of diameters d and 2d and lengths, which are multiples of l. The increasing order of their resistances will be:

1. A < B < C < D
2. A < C < D < B
3. A < D < C < B
4. D < A < C < B

A magnetic compass is present on a small table, very close to the wall in a room. A man enters the room and switches on the Air Conditioner fitted near the ceiling. He observes that the needle in the compass shows immediate deflection. Identify the most probable reason for the deflection.

1. Air blowing in the room.
2. Current starts flowing through AC wire concealed in the adjacent wall.
3. Vibrations are produced when the Man starts talking to his wife in the kitchen.
4. Vibrations were produced due to a file in his hand that fell on the ground.

Two substances, A and B, have the same mass. Substance A has a higher specific heat capacity than substance B. What consequences would you expect when these substances are subjected to the same amount of heat energy?

1. Substance A will experience a smaller temperature change than substance B.
2. Substance A will experience a larger temperature change than substance B.
3. Both substances will experience the same temperature change.
4. Either of them can show a greater change in temperature as the temperature change depends on factors other than specific heat capacity.