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PUNJAB BOARD PREVIOUS YEAR PAPERS-Electromagnetic Waves-EXERCISE
- Find the wavelength of electromagnetic waves of frequency 5 X10^19Hz i...
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- Find the wavelength of electromagnetic waves of frequency 6 xx 10^12 H...
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- Give the ratio of velocities of light rays of wave length 4000A^@ and ...
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- Write two applications of Infra-red waves.
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- Can an electromagnetic wave be deflected by a magnetic field ? Explain...
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- Write two applications of gamma (gamma)-rays.
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- Can an electromagnetic wave be deflected by an electric field explain?
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- Write two applications of Ultra-Violet rays.
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- Can an electromagnetic wave be deflected by a magnetic field ? Explain...
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- Name the electromagnetic radiations used for viewing the objects or to...
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- Which physical quantity if any has the same value for waves belonging ...
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- If the earth did not have atmosphere, would its average surface temper...
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- Which of the following has shortest frequency-Microwaves, X-Rays, Ultr...
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- Which of the following has shortest wavelength Radio waves, red light,...
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- arrange the following radiations in descending order of wavelength : R...
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- Write the following radiations in ascending order of wavelength microw...
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- Write the following radiations in an ascending order in respect of the...
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- Write the following radiations in a descending order of their frequenc...
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- Arrange the following radiations in the descending order of wavelength...
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- What do you mean by displacement current ?
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