Science and Technology SEE 2082 question paper

Group A

Very short answer questions(16 × 1 = 16)

1. 1.

   Answer the following questions in very short: a) Define scalar quantities. b) What is optical instrument? c) What is called latent heat of a substance? d) Define elasticity. e) How is fossil fuel formed? f) Write the value of Avogadro's number. g) Write any one draw-back of modern periodic table? h) Name any two ores of silver. i) What is ${\mathrm{P}}^{\mathrm{H}}$? j) Give an example of combination reaction. k) What are polysaccharides? l) Meiosis cell division is called reductional division, why? m) Write a function of Adrenal gland. n) Write a function of D.N.A. o) Write an importance of denitrifying bacteria. p) What is Planetarium?

   GROUP: B | Short answer questions | 13 × 2 = 26

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   16
2. 3.

   Write the condition of the continuity of the function $f(x)$ at the point $x=a$.

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   1
3. 6.

   In which condition a circle is formed when a plane surface intersects a cone? Write it.

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   1
4. 10.

   In an inversion transformation, if a point $P$ lies at the centre of inversion circle then where does its image $P^{\prime }$ lie? Write it. FULL MARKS: 75 PASS MARKS: 27 TIME: 3 hrs INSTRUCTIONS: Give creative answers in your own style on the basis of the given instructions. Answer all the questions: GROUP: A | Very short answer questions | 11 × 1 = 11

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   1