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CBSE Notes 2011-2012 » XI-Physics

Units and Measurement

What is the significance of null vector ?

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What is the significance of null vector ?

When do we say two vectors are orthogonal ?

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When do we say two vectors are orthogonal ?

What do you mean by uniform angular velocity ?

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What do you mean by uniform angular velocity ?

Define angular acceleration.

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Define angular acceleration.

Is angular displacement a vector ? Why ?

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Is angular displacement a vector ? Why ?

State, for each of the following physical quantities, if it is a scalar or a vector : Volume, mass, ...

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State, for each of the following physical quantities, if it is a scalar or a vector : Volume, mass, speed, acceleration, density, number of moles, velocity, angular frequency, displacement, angular velocity.

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