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Old Exam Papers Dec. 2010 - Video

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6. Describe the following :<br />

(i) Phosphorescence<br />

(ii) Fluorescence<br />

(iii) Photosensitization<br />

(iv) Photoionization<br />

fuEufyf[kr dh foospuk dhft;s %<br />

(i) LQqjnhfIr<br />

(ii) izfrnhfIr<br />

(iii) izdk'k laosnu<br />

(iv) izdk'k vk;uu<br />

2½?4<br />

2½?4<br />

7. (a) Define refractivity, specific refractivity and molar<br />

refractivity. 2<br />

viorZukad] fof'k"V viorZukad ,oa eksyj viorZukad dks<br />

ifjHkkf"kr dhft;sA 2<br />

(b) How does the measurement of refractive index is<br />

done by Abbe's Refractometer ? 8<br />

,scs dh viorZukadekih ls viorZukad dk fu/kkZj.k fdl<br />

izdkj fd;k tkrk gS \ 8<br />

600 4 CH-11<br />

<strong>Papers</strong> (A) (<strong>Dec</strong>ember) <strong>2010</strong><br />

(572)<br />

(ii) o.kZo/kZd<br />

(iii) LVksd ,oa ,UVhLVksd js[kk,¡<br />

(iv) oj.k fu;e<br />

2½?4<br />

4. (a) Differentiate simple harmonic oscillator and<br />

anharmonic oscillator. 5<br />

ljy vkorZ nksyd ,oa vuko`r nksyd esa vUrj Li"V<br />

dhft;sA 5<br />

(b) Calculate the energy of simple harmonic<br />

oscillator. 5<br />

ljy vkorZ nksyd dh ÅtkZ dh x.kuk dhft;sA<br />

5. (a) What are the laws of photochemistry ? Describe<br />

briefly. 5<br />

izdk'k jlk;u ds fu;eksa dk laf{kIr o.kZu dhft;sA 5<br />

(b) Explain quantum yield. How does quantum yield<br />

determined experimentally ? 5<br />

DokaVe yfC/k dks le>kb;sA DokaVe yfC/k dk izk;ksfxd<br />

fu/kkZj.k fdl izdkj gksrk gS \ 5<br />

CH-11 3 PTO<br />

5

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