Consider the following statements :1. There is no net moment on a body which is in equilibrium.2. The momentum of a body is always conserved.3. The kinetic energy of an object is always conserved.Which of the statements given above is/are correct?

Physics
Consider the following statements :1. There is no net moment on a body which is in equilibrium.2. The momentum of a body is always conserved.3. The kinetic energy of an object is always conserved.Which of the statements given above is/are correct?

2 and 3 only

1 and 2 only

1, 2 and 3

1 only

2 and 3 only

1 and 2 only

1, 2 and 3

1 only

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Physics
Copper wires are generally used for electrical power transmission instead of iron wire because :

Copper can take higher power than iron

Copper is cheaper than iron

Copper is lighter than iron

Copper is a better conductor of electricity than iron

Copper can take higher power than iron

Copper is cheaper than iron

Copper is lighter than iron

Copper is a better conductor of electricity than iron

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Physics
The density of water is 1 g/cc. This is strictly valid at

25°C

4°C

100°C

0°C

25°C

4°C

100°C

0°C

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Physics
A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ?

Sphere

Disk

Depends on their masses

Both reach at the same time

Sphere

Disk

Depends on their masses

Both reach at the same time

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Physics
The surface tension of water on adding detergent to it

No change

Decreases

Increases

Becomes zero

No change

Decreases

Increases

Becomes zero

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Physics
Which law relates to the ideal gas law?

P1V1 = P2V2

T1/V1 = T2/V2

P1/V1 = P2/V2

P1T1 = P2T2

P1V1 = P2V2

T1/V1 = T2/V2

P1/V1 = P2/V2

P1T1 = P2T2

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Physics

Physics Consider the following statements :1. There is no net moment on a body which is in equilibrium.2. The momentum of a body is always conserved.3. The kinetic energy of an object is always conserved.Which of the statements given above is/are correct?

Physics Copper wires are generally used for electrical power transmission instead of iron wire because :

Physics The density of water is 1 g/cc. This is strictly valid at

Physics A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ?

Physics The surface tension of water on adding detergent to it

Physics Which law relates to the ideal gas law?

Physics
Consider the following statements :1. There is no net moment on a body which is in equilibrium.2. The momentum of a body is always conserved.3. The kinetic energy of an object is always conserved.Which of the statements given above is/are correct?

Physics
Copper wires are generally used for electrical power transmission instead of iron wire because :

Physics
The density of water is 1 g/cc. This is strictly valid at

Physics
A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ?

Physics
The surface tension of water on adding detergent to it

Physics
Which law relates to the ideal gas law?