Reproduction in Plants and Animals — Science STD 10 — Question

Draw and label the female Reproductive System of Rabbit.

With the help of ray diagram, explain the nature, size and position of the image formed by a convex lens. When object is placed at
(i) infinity
(ii) beyond C
(iii) placed at C
(iv) Placed between F and C,
(v) placed at F
(vi) placed between F and optical centre O.

State and explain the applications of Avogadro’s law.
(OR)
Give any two applications of Avogadro’s law.
(OR)
Write any three applications of Avogadro’s law.

Identify the compounds using the clues given below.
(a) This is a dark coloured syrupy liquid containing 30% of sucrose.
(b) During manufacture of ethanoic acid this acts as an oxidising agent.
(c) This enzyme converts sucrose into glucose and fructose.
(d) Ethanol on dehydrogenation with Cu/573K gives this compound.
(e) This compound is used as an antiseptic.

(a) Brain
(b) Structure of Spinal Cord
(c) Nerve impulse transmission

At what temperature the value of Celcius and Fahrenheit scale coincide.

A constant volume thermometer using the gas reads a pressure of 1.75 × 104 Pa at normal freezing of water and reads 2.39 × 104 pa at normal boiling point of water. Obtained from the observation the temperature of absolute zero on the Celcius scale.

Explain the parallel connection of series resistors.