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Physics XI Notes

Physics XI Notes

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Thermal Properties of Matter- Old is Gold

Thermal Properties of Matter- Old is Gold

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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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Electrostatics- Old is Gold

Electrostatics- Old is Gold

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Photometry- Old is Gold

Photometry- Old is Gold

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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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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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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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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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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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State the laws of flotation.

State the laws of flotation.

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Refraction through prisms- Old is Gold

Refraction through prisms- Old is Gold

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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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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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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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Capacitance and dielectrics- Old is Gold

Capacitance and dielectrics- Old is Gold

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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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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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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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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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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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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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Dispersion- Old is Gold

Dispersion- Old is Gold

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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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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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Why bridges are declared unsafe after a long use?

Why bridges are declared unsafe after a long use?

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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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Reflection at curved mirrors- Old is Gold

Reflection at curved mirrors- 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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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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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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Viscosity-Old is Gold

Viscosity-Old is Gold

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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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Why does ice float in water?

Why does ice float in water?

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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 heavy truck collides with a car, the occupants of car are more likely to be hurt than the truck driver. Why?

When a heavy truck collides with a car, the occupants of car are more likely to be hurt than the truck driver. Why?

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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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1. State Newton’s Second Law of Motion.

1. State Newton’s Second Law of Motion.

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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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Surface Tension-Old is Gold

Surface Tension-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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Distinguish between conservative and non-conservative force.

Distinguish between conservative and non-conservative force.

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Explain why spokes are fitted in the cycle wheel.

Explain why spokes are fitted in the cycle wheel.

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Explain why the moon has no atmosphere?

Explain why the moon has no atmosphere?

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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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If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth?

If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth?

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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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If the earth is struck by meteorites, the earth will slow down slightly. Why?

If the earth is struck by meteorites, the earth will slow down slightly. Why?

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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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Why is it difficult to run fast on sand?

Why is it difficult to run fast on sand?

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Kinematics-Old is Gold

Kinematics-Old is Gold

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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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Is friction a necessary evil? Explain.

Is friction a necessary evil? Explain.

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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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What is meant by elastic and inelastic collision?

What is meant by elastic and inelastic collision?

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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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Transfer of heat- Old is Gold

Transfer of heat- Old is Gold

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A dancer girl is rotating over a turntable with her arms outstretched. If she lowers her arms how does this affect her motion?

A dancer girl is rotating over a turntable with her arms outstretched. If she lowers her arms how does this affect her motion?

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NEB Model Question for Physics – Class 11

NEB Model Question for Physics – Class 11

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First law of thermodynamics- Old is Gold

First law of thermodynamics- Old is Gold

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Lenses – Old is Gold

Lenses – Old is Gold

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