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PUNJAB BOARD PREVIOUS YEAR PAPERS-Electromagnetic Waves-EXERCISE
- Define Green House effect.
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- What are microwaves? give their any one use.
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- State any four properties of electromagnetic waves.
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- What are x-rays ? How do they differ from electrons ?
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- What are electromagnetic waves ? Write four characteristics of these w...
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- What are electromagnetic waves?
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- What are electromagnetic waves ? Write four characteristics of these w...
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- Write two uses of each of the following : Radiowaves
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- Write two uses of each of the following : Microwaves.
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- What are electromagnetic waves ? Write four characteristics of these w...
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- Write two uses of each of the following : Microwaves.
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- Write one use of each of the following : infrared waves
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- Write one use of each of the following :UV radiation
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- Write one use of each of the following :gamma rays
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- What are electromagnetic waves ? Write four characteristics of these w...
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- What do you mean by displacement current ?
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- State any four properties of electromagnetic waves.
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- Write two properties and two uses of microwaves.
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- Give the source of production of X-rays.
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- Give two uses of microwaves.
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