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Name the quantity which is measured in kW.
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Name the quantity which is measured in Wh.
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Name the quantity which is measured in eV.
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Name the type of single pulley that has an ideal mechanical advantage equal to 2. Draw a labelled diagram of the pulley mentioned by you.
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Which colour of white light travels fastest in any medium except air?
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A ray of light strikes the surface of a rectangular glass slab such that the angle of incidence in air is
- 0°,
- 45°.
In each case, draw a diagram to show the path taken by the ray as it passes through the glass slab and emerges from it.
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Where can a body execute natural vibrations?
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Why is the switch put in the live wire?
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What precaution do you take while handling a switch?
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Name the wire to which a switch is connected.
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What is lateral displacement?
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Why does sun appear red at sunrise and sunset?
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Give one example of damped vibrations
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Draw the diagram of a dual control switch when the appliance is switched ‘ON’.
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Which color of white light is scattered the least and why?
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In a beam balance, when the beam is balanced in a horizontal position, it is in ______ equilibrium.
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Name the unit of physical quantity obtained by the formula `(2K)/v^2` Where K: kinetic energy, v: linear velocity
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Why does the amplitude of a vibrating body continuously decrease during damped vibrations?
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What do you mean by an equilibrium of a body?
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