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Physics XI Notes

Physics XI Notes

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Second Law of Thermodynamics- Old is Gold

Second Law of Thermodynamics- Old is Gold

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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
Electrostatics- Old is Gold

Electrostatics- Old is Gold

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1 min read
Photometry- Old is Gold

Photometry- Old is Gold

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1 min read
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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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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State the laws of flotation.

State the laws of flotation.

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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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Hygrometry- Old is Gold

Hygrometry- Old is Gold

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Transfer of heat- Old is Gold

Transfer of heat- Old is Gold

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Refraction through prisms- Old is Gold

Refraction through prisms- Old is Gold

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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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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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Does a ship sink more in river water or in sea water? Explain.

Does a ship sink more in river water or in sea water? Explain.

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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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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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Kinematics-Old is Gold

Kinematics-Old is Gold

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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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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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Viscosity-Old is Gold

Viscosity-Old is Gold

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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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Dispersion- Old is Gold

Dispersion- Old is Gold

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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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Lenses – Old is Gold

Lenses – Old is Gold

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Optical instruments- Old is Gold

Optical instruments- 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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Is friction a necessary evil? Explain.

Is friction a necessary evil? Explain.

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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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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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Heat and Temperature- Old is Gold

Heat and Temperature- Old is Gold

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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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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
Why is the kinetic friction less than the limiting friction?

Why is the kinetic friction less than the limiting friction?

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Physics XI Questions

Physics XI Questions

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10 min read
Refraction at plane surfaces- Old is Gold

Refraction at plane surfaces- Old is Gold

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What is meant by elastic and inelastic collision?

What is meant by elastic and inelastic collision?

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Units in different systems

Units in different systems

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3 min read
A pendulum clock is taken to moon. Will it gain or lose time?

A pendulum clock is taken to moon. Will it gain or lose time?

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Why does ice float in water?

Why does ice float in water?

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1. State Newton’s Second Law of Motion.

1. State Newton’s Second Law of Motion.

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Surface Tension-Old is Gold

Surface Tension-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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Capacitance and dielectrics- Old is Gold

Capacitance and dielectrics- Old is Gold

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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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Work

Work

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Thermal Properties of Matter- Old is Gold

Thermal Properties of Matter- Old is Gold

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Why is Glycerine more viscous than water?

Why is Glycerine more viscous than water?

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Distinguish between conservative and non-conservative force.

Distinguish between conservative and non-conservative force.

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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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What do you understand by viscosity?

What do you understand by viscosity?

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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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Explain why spokes are fitted in the cycle wheel.

Explain why spokes are fitted in the cycle wheel.

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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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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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What is meant by the moment of a couple?

What is meant by the moment of a couple?

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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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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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Quantity of Heat- Old is Gold

Quantity of Heat- Old is Gold

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Explain why the moon has no atmosphere?

Explain why the moon has no atmosphere?

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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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1 min read
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