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BINA LIBRARY-ELEMENTS OF PHYSICS ii-EXERCISE
- Name the scientist who first demonstrated the existence of electromagn...
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- State the wavelength range of visible region.
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- Which part of the electromagnetic spectrum carries heat energy?
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- Name the part of electromagnetic spectrum which is suitable for radar ...
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- Write down the expression of velocity of electromagnetic wave in free ...
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- What oscillates in electromagnetic waves? Are these waves transverse o...
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- Name the characteristics of e.m waves that (i) increases, (ii) remains...
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- Write the relationship between amplitudes of electric and magnetic fie...
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- Which part of the e.m. spectrum has largest penetrating power?
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- Arrange in descending order of wavelength gamma-rays, x-rays and visib...
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- Name the e.m. radiations used for studying crystal structure of solids...
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- What is the ratio of speed of infra-red rays and ultraviolet rays in v...
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- How does a charge 'q' oscillating at certain frequency produce electro...
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- Write down the four Maxwell's equations.
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- When a boat is moving in the river, does the water offer force of fric...
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- What are x-rays? State two important uses of it.
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- Explain qualitatively that an e.m. wave can propagate without material...
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- What is the wavelength range of gamma-rays ? State two uses of gamma-r...
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- State various uses of radiowaves.
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- Why does friction increase if the two surfaces are pressed ?
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