Q. State the properties and uses of a Junction transistor.

Q. What are the factors that are essential for photosynthesis?

Q. What are the characteristics of Simple Harmonic Motion?

Q. What are the factors that influence the value of 'g'?

Q. How do amplexusory pads help the frog?

Q. Into how many classes the elements are divided based on the electronic configuration? What are they?

Q. What are basic processes involved in the working of a LASER?

Q. Explain the formation of Triple bond with diagram.

Q. Name the membranes that cover the brain of human beings.

Q. Define solubility and write the factors which influence the solubility.

Q. How do you determine the diameter of a wire using a Screw guage? Explain.

Q. Draw the structure of chloroplast and label the parts.

Q. State Lenz's law.

Q. Draw the shape of water molecule.

Q. Define the terms Electro-typing and Electro-plating.

Q. What is (a) mass defect, and (b) binding energy in Oxygen ${}_8^{16}O$, whose nuclear mass is $15.995$ amu. $(m_p=1.0078$amu$;$ $m_n=1.0087$amu$)$.

Q. In a Stationary wave, the distance between a node and the next antinode is 10 cm. What is the value of its wavelength?

Q. What are the effects of cytokinins on plant growth?

Q. Write the equation of motion for a freely falling body.

Q. Define a drug. What are the characters of an ideal drug?

Q. Compare the structures of Diamond and Graphite.

Q. Draw and label the diagram showing various regions of Electro-magnetic spectrum and their wavelength ranges.

Q. What is Saline?

Q. Write the names of Inert gases.

Q. How does carbon dioxide diffuse in submerged plants?

Q. Write reactions of group IIA elements with.
$1$. Water
$2$. Oxygen
$3$. Hydrogen
$4$. Chlorine.

Q. Sketch the structure of any drug molecule.

Q. Which cells of the body are responsible for obesity and why?

Q. Compare the values of Relative Permeability and Magnetic Susceptibility of Dia, Para and Ferro magnetic substances.

Q. Draw the shapes of five d-orbitals.