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?

1, 2 and 3

2 and 3 only

1 and 2 only

1 only

1, 2 and 3

2 and 3 only

1 and 2 only

1 only

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Physics
What is the principle of a ''Life Jacket"?

It provides oxygen to a drowning person

The person can sit on it like a raft

It decreases the volume of the person to keep him afloat

It increases the volume of the person to keep him afloat

It provides oxygen to a drowning person

The person can sit on it like a raft

It decreases the volume of the person to keep him afloat

It increases the volume of the person to keep him afloat

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Physics
Rate of change of displacement is known as ________

Speed

Acceleration

Distance

Velocity

Speed

Acceleration

Distance

Velocity

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Physics
If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will

Fall into his hand

Fall in front of him

Fall behind him

None of these

Fall into his hand

Fall in front of him

Fall behind him

None of these

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Physics
Which of the following criterion is used for any metal to be used as a cooking material ?

More specific heat

Less thermal conductivity

Less electrical conductivity

More thermal conductivity

More specific heat

Less thermal conductivity

Less electrical conductivity

More thermal conductivity

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Physics
The type of mirror used in automobiles to see the traffic on the rear side is

Convex

Plano-Convex

Plane

Concave

Convex

Plano-Convex

Plane

Concave

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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 What is the principle of a ''Life Jacket"?

Physics Rate of change of displacement is known as ________

Physics If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will

Physics Which of the following criterion is used for any metal to be used as a cooking material ?

Physics The type of mirror used in automobiles to see the traffic on the rear side is

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
What is the principle of a ''Life Jacket"?

Physics
Rate of change of displacement is known as ________

Physics
If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will

Physics
Which of the following criterion is used for any metal to be used as a cooking material ?

Physics
The type of mirror used in automobiles to see the traffic on the rear side is