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Fig. shows a ray of white light that passes through a prism and produces a spectrum.
(a) Name the phenomenon that is taking place.
(b) What colour would you see at X and Y?
(c) What radiation would you detect above X and below Y?
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Make the correct for each of the following :
With reference to the fig, the refractive index of the glass block is
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What do you mean by Atomic number
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What do you mean by Mass number.
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What do you mean by Atomic mass
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State two similarities and two dissimilarities between the γ-rays and X-rays.
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State the penetrating range of α, β and γ radiations.
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Give the relative ionizing power of α, β and γ radiations.
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What happens to the atomic number of element when (i) An α -particle, (ii) A β -particle 1 and (iii) γ-radiation is emitted?
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What happens to the mass number of an element when (i) an α -particle, (ii) a β -particle, and (iii) γ -radiation is emitted?
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A radioactive source emits three types of radiations. Name them.
(i) Name the radiations which are charged.
(ii) Name the radiations which are most penetrating.
(iii) Name the radiations which travel with the speed of light.
(iv) Name the radiations which have the largest mass.
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