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Physics XI Notes

Physics XI Notes

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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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Optical instruments- Old is Gold

Optical instruments- Old is Gold

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Capacitance and dielectrics- Old is Gold

Capacitance and dielectrics- Old is Gold

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What do you understand by viscosity?

What do you understand by viscosity?

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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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Viscosity-Old is Gold

Viscosity-Old is Gold

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How will you justify that stone is more rigid than iron?

How will you justify that stone is more rigid than iron?

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Photometry- Old is Gold

Photometry- Old is Gold

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1. State Newton’s Second Law of Motion.

1. State Newton’s Second Law of Motion.

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Can a body be in equilibrium if it is in motion? Explain.

Can a body be in equilibrium if it is in motion? Explain.

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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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Thermal Properties of Matter- Old is Gold

Thermal Properties of Matter- Old is Gold

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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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Why is Glycerine more viscous than water?

Why is Glycerine more viscous than water?

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Why does ice float in water?

Why does ice float in water?

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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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3. Explain why a cricketer moves his hands backwards while catching ball?

3. Explain why a cricketer moves his hands backwards while catching ball?

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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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Why is a cow more stable than a man?

Why is a cow more stable than a man?

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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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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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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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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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First law of thermodynamics- Old is Gold

First law of thermodynamics- Old is Gold

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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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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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Why is a horse more stable than a man?

Why is a horse more stable than a man?

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What is meant by the moment of a couple?

What is meant by the moment of a couple?

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Lenses – Old is Gold

Lenses – Old is Gold

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If a cork is released from the bottom of a jar filled with water, what will happen and why?

If a cork is released from the bottom of a jar filled with water, what will happen and why?

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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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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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Explain why a cyclist bend while going along curved road?

Explain why a cyclist bend while going along curved road?

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Explain which one is more elastic- rubber or steel.

Explain which one is more elastic- rubber or steel.

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Second Law of Thermodynamics- Old is Gold

Second Law of Thermodynamics- Old is Gold

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A cork is floating in water. What is the apparent weight of the cork?

A cork is floating in water. What is the apparent weight of the cork?

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Reflection at curved mirrors- Old is Gold

Reflection at curved mirrors- Old is Gold

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Why an astronaut in a space capsule orbiting the earth experiences a feeling of weightlessness?

Why an astronaut in a space capsule orbiting the earth experiences a feeling of weightlessness?

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Why a wrench of longer arm is preferred in comparison to a wrench of short arm?

Why a wrench of longer arm is preferred in comparison to a wrench of short arm?

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How does ‘g’ at a point vary with distance from the centre of the earth? Where is the highest value of ‘g’? Explain.

How does ‘g’ at a point vary with distance from the centre of the earth? Where is the highest value of ‘g’? Explain.

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Why is it difficult to run fast on sand?

Why is it difficult to run fast on sand?

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What is meant by elastic and inelastic collision?

What is meant by elastic and inelastic collision?

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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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Why is the kinetic friction less than the limiting friction?

Why is the kinetic friction less than the limiting friction?

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Differentiate between conservation of kinetic energy and conservation of linear momentum.

Differentiate between conservation of kinetic energy and conservation of linear momentum.

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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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State the laws of flotation.

State the laws of flotation.

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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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The leaves fall when a tree is shaken. Give reason.

The leaves fall when a tree is shaken. Give reason.

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Why is the bottom of a ship made heavy?

Why is the bottom of a ship made heavy?

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why do we slip on a rainy day?

why do we slip on a rainy day?

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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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Surface Tension-Old is Gold

Surface Tension-Old is Gold

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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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Refraction at plane surfaces- Old is Gold

Refraction at plane surfaces- Old is Gold

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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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NEB Model Question for Physics – Class 11

NEB Model Question for Physics – Class 11

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Work

Work

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Electrostatics- Old is Gold

Electrostatics- Old is Gold

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What are the drawbacks of simple pendulum?

What are the drawbacks of simple pendulum?

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