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Physics XI Notes

Physics XI Notes

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What do you mean by geo-stationary satellite? Explain?

What do you mean by geo-stationary satellite? Explain?

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1 min read
The earth moving round the sun actes upon by a force, the work on earth by this force. Do you agree with this statement?

The earth moving round the sun actes upon by a force, the work on earth by this force. Do you agree with this statement?

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1 min read
If a moving bullet striking a block of wood on a frictionless table embeds inside it what happens to the KE of the bullet?

If a moving bullet striking a block of wood on a frictionless table embeds inside it what happens to the KE of the bullet?

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1 min read
Why is easier to lift a body in a liquid than in air?

Why is easier to lift a body in a liquid than in air?

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1 min read
Surface Tension-Old is Gold

Surface Tension-Old is Gold

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1 min read
A body is moving in a circular path with constant speed. Is this motion a simple harmonic?

A body is moving in a circular path with constant speed. Is this motion a simple harmonic?

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1 min read
Why is it easy to pull a lawn roller than to push it?

Why is it easy to pull a lawn roller than to push it?

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1 min read
Why is the bottom of a ship made heavy?

Why is the bottom of a ship made heavy?

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1 min read
During pregnancy, woman often develop back pains from leaning backward while walking. Why do they have to walk this way?

During pregnancy, woman often develop back pains from leaning backward while walking. Why do they have to walk this way?

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1 min read
In a siphon, water is lifted above its level during flow from container to another, where does it needed potential energy from?

In a siphon, water is lifted above its level during flow from container to another, where does it needed potential energy from?

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1 min read
Explain which one is more elastic- rubber or steel.

Explain which one is more elastic- rubber or steel.

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1 min read
What is the counterpart of the mass and force in rotational motion?

What is the counterpart of the mass and force in rotational motion?

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1 min read
Optical instruments- Old is Gold

Optical instruments- Old is Gold

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1 min read
Why is a horse more stable than a man?

Why is a horse more stable than a man?

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1 min read
Work

Work

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1 min read
2. If action and reaction are always equal and opposite, why don’t they always cancel each other?

2. If action and reaction are always equal and opposite, why don’t they always cancel each other?

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1 min read
Steel balls sink in water but they don’t sink in mercury. Why?

Steel balls sink in water but they don’t sink in mercury. Why?

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1 min read
Why does ice float in water?

Why does ice float in water?

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1 min read
Explain why the moon has no atmosphere?

Explain why the moon has no atmosphere?

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1 min read
Transfer of heat- Old is Gold

Transfer of heat- Old is Gold

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1 min read
Explain why spokes are fitted in the cycle wheel.

Explain why spokes are fitted in the cycle wheel.

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1 min read
What will happen to the value of ‘g’ if the earth stops rotating?

What will happen to the value of ‘g’ if the earth stops rotating?

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1 min read
How does K.E. of an object change if its momentum is doubled?

How does K.E. of an object change if its momentum is doubled?

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1 min read
Why bridges are declared unsafe after a long use?

Why bridges are declared unsafe after a long use?

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1 min read
Why is the kinetic friction less than the limiting friction?

Why is the kinetic friction less than the limiting friction?

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1 min read
Explain why a man carrying a load on his back leans forward?

Explain why a man carrying a load on his back leans forward?

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1 min read
Is it possible for a solid body to have no matter at it centre of gravity?

Is it possible for a solid body to have no matter at it centre of gravity?

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1 min read
why do we slip on a rainy day?

why do we slip on a rainy day?

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1 min read
1. State Newton’s Second Law of Motion.

1. State Newton’s Second Law of Motion.

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1 min read
Hygrometry- Old is Gold

Hygrometry- Old is Gold

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1 min read
A helium filled balloon rises to a certain height and then halts. Why?

A helium filled balloon rises to a certain height and then halts. Why?

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1 min read
Dispersion- Old is Gold

Dispersion- Old is Gold

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1 min read
Thermal Properties of Matter- Old is Gold

Thermal Properties of Matter- Old is Gold

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1 min read
What is meant by the moment of a couple?

What is meant by the moment of a couple?

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1 min read
Second Law of Thermodynamics- Old is Gold

Second Law of Thermodynamics- Old is Gold

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1 min read
How will you make difference between density and specific gravity of a body?

How will you make difference between density and specific gravity of a body?

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1 min read
Kinematics-Old is Gold

Kinematics-Old is Gold

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1 min read
If a pendulum clock is taken to a mountain top, does it gain or lose time?

If a pendulum clock is taken to a mountain top, does it gain or lose time?

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1 min read
Electrostatics- Old is Gold

Electrostatics- Old is Gold

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1 min read
A rigid, lighter than air balloon filled with Helium cannot continue to rise indefinitely. Why?

A rigid, lighter than air balloon filled with Helium cannot continue to rise indefinitely. Why?

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1 min read
Capacitance and dielectrics- Old is Gold

Capacitance and dielectrics- Old is Gold

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1 min read
The weight of a body is less inside the earth than on the surface. Explain.

The weight of a body is less inside the earth than on the surface. Explain.

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1 min read
Refraction at plane surfaces- Old is Gold

Refraction at plane surfaces- Old is Gold

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1 min read
A man carrying a bucket of water on his hand always leans to the opposite side. Explain.

A man carrying a bucket of water on his hand always leans to the opposite side. Explain.

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1 min read
When a bus takes a turn, passengers are thrown away from the centre of the curved path. Why?

When a bus takes a turn, passengers are thrown away from the centre of the curved path. Why?

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1 min read
Viscosity-Old is Gold

Viscosity-Old is Gold

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1 min read
What do you understand by viscosity?

What do you understand by viscosity?

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1 min read
What is the difference between centre of gravity and centre of mass of a system?

What is the difference between centre of gravity and centre of mass of a system?

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1 min read
NEB Model Question for Physics – Class 11

NEB Model Question for Physics – Class 11

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4 min read
Can a body be regarded in a state of rest as well as in motion at the same time? Give an example.

Can a body be regarded in a state of rest as well as in motion at the same time? Give an example.

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1 min read
Explain why a coin placed on a cardboard covering a glass falls into the glass when the cardboard is pulled to one side?

Explain why a coin placed on a cardboard covering a glass falls into the glass when the cardboard is pulled to one side?

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1 min read
A solid tied at the end of a string is revolved in vertical. At what point the tension in the string will be the greatest?

A solid tied at the end of a string is revolved in vertical. At what point the tension in the string will be the greatest?

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1 min read
Suppose two forces act on rigid body and two forces have same magnitude but opposite direction. what conditions the body rotate?

Suppose two forces act on rigid body and two forces have same magnitude but opposite direction. what conditions the body rotate?

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1 min read
Explain why a cyclist bend while going along curved road?

Explain why a cyclist bend while going along curved road?

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1 min read
State the laws of flotation.

State the laws of flotation.

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1 min read
Physics XI Questions

Physics XI Questions

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10 min read
Photometry- Old is Gold

Photometry- Old is Gold

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1 min read
Distinguish between conservative and non-conservative force.

Distinguish between conservative and non-conservative force.

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1 min read
Reflection at curved mirrors- Old is Gold

Reflection at curved mirrors- Old is Gold

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1 min read
On what factors does the time period of a simple pendulum depend?

On what factors does the time period of a simple pendulum depend?

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1 min read
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