Maths-

General

Easy

Question

# If defined by

- one-one but not onto
- not one-one but onto
- one-one and onto
- one-one and onto

## The correct answer is: one-one and onto

### Related Questions to study

maths-

### is a function defined by

### is a function defined by

maths-General

physics

### The force acting on a body whose linear momentum changes by 20 kgms^{-1 }in 10sec is

### The force acting on a body whose linear momentum changes by 20 kgms^{-1 }in 10sec is

physicsGeneral

physics

### Average force exerted by the bat is

### Average force exerted by the bat is

physicsGeneral

physics

### A cricket ball of mass 150 g. is moving with a velocity of 12m/s and is hit by a bat so that the ball is turned back with a velocity of 20 m/s If duration of contact between the ball and the bat is 0.01sec The impulse of the force is

### A cricket ball of mass 150 g. is moving with a velocity of 12m/s and is hit by a bat so that the ball is turned back with a velocity of 20 m/s If duration of contact between the ball and the bat is 0.01sec The impulse of the force is

physicsGeneral

physics

### Assertion : It is difficult to move bike with its breaks on.

Reason : Rolling friction is converted into sliding friction, which is comparatively larger.

### Assertion : It is difficult to move bike with its breaks on.

Reason : Rolling friction is converted into sliding friction, which is comparatively larger.

physicsGeneral

physics

### Assertion : A body falling freely under gravity becomes weightless.

Reason:

### Assertion : A body falling freely under gravity becomes weightless.

Reason:

physicsGeneral

physics

### Assertion : body of trans 1 k 6 is moving with an acceleration of The rate of change of its momentum is 1 N

Reason : The rate of change of momentum of body = force applied on the body.

### Assertion : body of trans 1 k 6 is moving with an acceleration of The rate of change of its momentum is 1 N

Reason : The rate of change of momentum of body = force applied on the body.

physicsGeneral

physics

### Assertion : Frictional forces are conservative forces.

Reason: Polential energy can be associated with frictional forces

### Assertion : Frictional forces are conservative forces.

Reason: Polential energy can be associated with frictional forces

physicsGeneral

physics

### When forces F_{1},F_{2},F_{3} are acting on a particle of mass m such that F^{2} and F^{3} are mulually perpendicelar. then the particle remains stationary. If the force F_{1} is now removed than the acceleration of the particle is

### When forces F_{1},F_{2},F_{3} are acting on a particle of mass m such that F^{2} and F^{3} are mulually perpendicelar. then the particle remains stationary. If the force F_{1} is now removed than the acceleration of the particle is

physicsGeneral

physics

### The minimum force required to start pushing a body up a rough (coefficient of ) inclined plane is F_{1}. While the minimum force needed to prevent it from sliding down is F^{2}. If the inclined plane makes an angle from the horizontal. such that than the ratio is

### The minimum force required to start pushing a body up a rough (coefficient of ) inclined plane is F_{1}. While the minimum force needed to prevent it from sliding down is F^{2}. If the inclined plane makes an angle from the horizontal. such that than the ratio is

physicsGeneral

physics

### A mass of 6 kg is suspended by a rope of length 2 m form the ceiling . A force of 50 N in the horizental direction is applied at the mid Point P of the rope as shown in figure. what is the angle the rope makes. with the vertical in equilibrium ? (g=10 ms^{2}) Neglect mass of the rope:

### A mass of 6 kg is suspended by a rope of length 2 m form the ceiling . A force of 50 N in the horizental direction is applied at the mid Point P of the rope as shown in figure. what is the angle the rope makes. with the vertical in equilibrium ? (g=10 ms^{2}) Neglect mass of the rope:

physicsGeneral

physics

### With what acceleration (a) should a bot descend so that a block of mass M placed in it exerts a force on the floor of the box?

### With what acceleration (a) should a bot descend so that a block of mass M placed in it exerts a force on the floor of the box?

physicsGeneral

physics

### Two bodies A and B each of mass m are fixed together by a massless spring A force F acts on the mass B as shown in figure. At the instant shown, a body A has an aceclration a. what is the acceleration of B

### Two bodies A and B each of mass m are fixed together by a massless spring A force F acts on the mass B as shown in figure. At the instant shown, a body A has an aceclration a. what is the acceleration of B

physicsGeneral

physics

### A balloon has a mass of 10 g in air. The air escapes from the balloon at a uniform rate with a velocity of 5 cm/s and the balloon shrinks completely in 2.5sec. calculate the average force acting on the balloon.

### A balloon has a mass of 10 g in air. The air escapes from the balloon at a uniform rate with a velocity of 5 cm/s and the balloon shrinks completely in 2.5sec. calculate the average force acting on the balloon.

physicsGeneral

physics

### The motion of a particle of a mass m is describe by y=. Find the once acting on the particle

### The motion of a particle of a mass m is describe by y=. Find the once acting on the particle

physicsGeneral