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Physics XI Notes
Physics XI Notes
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What is meant by the moment of a couple?
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Aug 18 '13
What is meant by the moment of a couple?
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A helium filled balloon rises to a certain height and then halts. Why?
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Aug 18 '13
A helium filled balloon rises to a certain height and then halts. Why?
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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?
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Aug 18 '13
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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Lenses – Old is Gold
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Aug 18 '13
Lenses – Old is Gold
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Explain why spokes are fitted in the cycle wheel.
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Aug 18 '13
Explain why spokes are fitted in the cycle wheel.
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Explain why the moon has no atmosphere?
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Aug 18 '13
Explain why the moon has no atmosphere?
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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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Aug 18 '13
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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Differentiate between conservation of kinetic energy and conservation of linear momentum.
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Aug 18 '13
Differentiate between conservation of kinetic energy and conservation of linear momentum.
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Why is it easy to pull a lawn roller than to push it?
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Aug 18 '13
Why is it easy to pull a lawn roller than to push it?
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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.
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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.
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Steel balls sink in water but they don’t sink in mercury. Why?
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Aug 18 '13
Steel balls sink in water but they don’t sink in mercury. Why?
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Electrostatics- Old is Gold
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Electrostatics- Old is Gold
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Why is a cow more stable than a man?
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Aug 18 '13
Why is a cow more stable than a man?
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Photometry- Old is Gold
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Photometry- Old is Gold
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How does K.E. of an object change if its momentum is doubled?
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Aug 18 '13
How does K.E. of an object change if its momentum is doubled?
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Why is Glycerine more viscous than water?
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Aug 18 '13
Why is Glycerine more viscous than water?
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What do you understand by viscosity?
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Aug 18 '13
What do you understand by viscosity?
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Refraction through prisms- Old is Gold
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Aug 18 '13
Refraction through prisms- Old is Gold
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What is the counterpart of the mass and force in rotational motion?
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Aug 18 '13
What is the counterpart of the mass and force in rotational motion?
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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?
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Aug 18 '13
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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Surface Tension-Old is Gold
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Surface Tension-Old is Gold
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When a bus takes a turn, passengers are thrown away from the centre of the curved path. Why?
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Aug 18 '13
When a bus takes a turn, passengers are thrown away from the centre of the curved path. Why?
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1. State Newton’s Second Law of Motion.
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1. State Newton’s Second Law of Motion.
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Quantity of Heat- Old is Gold
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Quantity of Heat- Old is Gold
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Work
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Work
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Viscosity-Old is Gold
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Viscosity-Old is Gold
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Hygrometry- Old is Gold
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Hygrometry- Old is Gold
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NEB Model Question for Physics – Class 11
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NEB Model Question for Physics – Class 11
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Second Law of Thermodynamics- Old is Gold
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Second Law of Thermodynamics- Old is Gold
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What are centre of buoyancy and metacentre?
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Aug 18 '13
What are centre of buoyancy and metacentre?
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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?
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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?
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Reflection at curved mirrors- Old is Gold
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Aug 18 '13
Reflection at curved mirrors- Old is Gold
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The weight of a body is less inside the earth than on the surface. Explain.
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Aug 18 '13
The weight of a body is less inside the earth than on the surface. Explain.
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A pendulum clock is taken to moon. Will it gain or lose time?
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Aug 18 '13
A pendulum clock is taken to moon. Will it gain or lose time?
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Is friction a necessary evil? Explain.
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Aug 18 '13
Is friction a necessary evil? Explain.
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Explain why a man carrying a load on his back leans forward?
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Aug 18 '13
Explain why a man carrying a load on his back leans forward?
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Can a body be in equilibrium if it is in motion? Explain.
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Aug 18 '13
Can a body be in equilibrium if it is in motion? Explain.
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Why a wrench of longer arm is preferred in comparison to a wrench of short arm?
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Aug 18 '13
Why a wrench of longer arm is preferred in comparison to a wrench of short arm?
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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?
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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?
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First law of thermodynamics- Old is Gold
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First law of thermodynamics- 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?
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Aug 18 '13
If a cork is released from the bottom of a jar filled with water, what will happen and why?
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Heat and Temperature- Old is Gold
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Heat and Temperature- Old is Gold
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A body is moving in a circular path with constant speed. Is this motion a simple harmonic?
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Aug 18 '13
A body is moving in a circular path with constant speed. Is this motion a simple harmonic?
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What are the drawbacks of simple pendulum?
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What are the drawbacks of simple pendulum?
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A man carrying a bucket of water on his hand always leans to the opposite side. Explain.
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Aug 18 '13
A man carrying a bucket of water on his hand always leans to the opposite side. Explain.
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Dispersion- Old is Gold
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Dispersion- Old is Gold
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If a pendulum clock is taken to a mountain top, does it gain or lose time?
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Aug 18 '13
If a pendulum clock is taken to a mountain top, does it gain or lose time?
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How will you make difference between density and specific gravity of a body?
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Aug 18 '13
How will you make difference between density and specific gravity of a body?
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State the laws of flotation.
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Aug 18 '13
State the laws of flotation.
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Refraction at plane surfaces- Old is Gold
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Aug 18 '13
Refraction at plane surfaces- 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?
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Aug 18 '13
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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Why bridges are declared unsafe after a long use?
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Why bridges are declared unsafe after a long use?
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Explain why a cyclist bend while going along curved road?
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Aug 18 '13
Explain why a cyclist bend while going along curved road?
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Why is easier to lift a body in a liquid than in air?
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Aug 18 '13
Why is easier to lift a body in a liquid than in air?
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Explain which one is more elastic- rubber or steel.
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Explain which one is more elastic- rubber or steel.
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The leaves fall when a tree is shaken. Give reason.
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Aug 18 '13
The leaves fall when a tree is shaken. Give reason.
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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?
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Aug 18 '13
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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Thermal Properties of Matter- Old is Gold
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Aug 18 '13
Thermal Properties of Matter- 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?
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Aug 18 '13
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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why do we slip on a rainy day?
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why do we slip on a rainy day?
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