So, In this article I'll give you

**important question of physics class 11 neb**(chapterwise). Also you can download**neb important questions for physics**at the last of the article. These are very**important questions for class 11 physics for neb students**.So, Let's get started

### Important question of physics class 11 NEB "Chapterwise"

In this article, I'll give you **Mechanics important questions for neb**. These are **most repeated questions of Physics in NEB **, so you should not leave any of these questions below:

#### 1. **Physical Quantities**

(Not any long questions)

**2. Vectors**

- Parallelogram law of Vector addition
- Triangle law of Vector addition

#### 3. Kinematics

- Projectile fired at an angle theta with horizontal

**4. Laws of Motion**

- Relation betn angle of friction & angle of repose
- State and explain the principle of conservation of linear momentum hence derive it from Newton's law of motion

#### 5. Work and Energy

- State and prove conservation of mechanical energy.
- Derive an expression to calculate workdone by a variable force.
- Prove that the colliding objects exchange their velocities in one dimensional elastic collision.

( New: Work done by a constant and a variable force.)

**6. Circular Motion**

- Time period of Conical Pendulum.
- Define centripetal force and Deduce it's expression. ( Why a force is needed to keep a body moving with uniform speed in a circular motion?)
- Motion of a bi cycle on a curved road
- motion of a car moving round in a circular banked track

*I highly recommend you to watch this in Video format as well by clicking in the video***👇👇👇**

#### 7. Gravitation

- Expression for GPE and Establish it's dimension
- Variation of acceleration due to gravity below the earth's surface
- Variation of acceleration due to gravity with the altitude
- (Variation of acceleration due to gravity with rotation)
- Relation for Gravitational potential at a point due to point mass
- (Artificial Satellite)
- Escape velocity from the surface of earth
- Orbital velocity and time period of the satellite revolving around the earth
- Total Energy of the Satellite revolving around the earth

**8) Equilibrium**

(Not any long questions)

#### 9. Rotational Dynamics

- Work done by Couple
- Expression of Rotational Kinetic energy in terms of Moment of inertia
- Relation between Angular momentum and Moment of Inertia
- moment of inertia of a uniform rod passing through the centre and perpendicular to its length
- moment of inertia of a uniform rod passing through one end and perpendicular to its length
- Relation between Torque and Moment of Inertia

**10. Elasticity**

- Energy stored in a stretched wire
- Hooke's law
- Determination of Young's modulus of elasticity
- Different types of Elasticity

#### 11. Periodic Motion *(*Not in New Syllabus)*

- Simple Harmonic Motion (Time Period)
- Simple Harmonic Motion (Relation between acceleration and displacement of Particle)
- Simple Harmonic Motion (Total Energy)
- Time Period of Simple pendulum

**12. Fluid Mechanics ****(*Not in New Syllabus)**

**12.1 Fluid Statics**

(Not any long questions)

**12.2 Surface Tension**

- Rise of liquid in a capillary tube
- Relation between Surface tension and Surface Energy

**12.3 Viscosity**

- Poiseulle's formula
- Bernoulli's equation
- Terminal Velocity
- Newton's law of Viscosity
- Determination of Stokes law by Dimensional method

Also read:

- Important Long questions of Physical chemistry Class 11
- Entrance Exam Questions for Engineering and MBBS
- Engineering Entrance Questions in Nepal
- Medical entrance exam question papers with answers pdf in Nepal

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