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Name the two structures which make up the central nervous system.
List four stimuli which can be detected by the skin. By what means do we become aware of a stimulus? Name the four taste sensations that we can distinguish.
Name one inorganic component of bone. Name three parts of the body where smooth (involuntary or unstriated) muscle may be found.
What is 'vasoconstriction'? What are the effects of vasoconstriction in the skin?
How will you destarch the leaves of a potted plant? How would you check that the destarching had been effective?
Write down the examples of chemical reactions which are catalysed by enzymes in the course of brewing.
Name the chemical elements present in a protein. What name is given to the sub-units which make up all proteins?
Write down the products of alcoholic fermentation? In which cell structures does respiration mostly occur?
Osmosis and transpiration both play a part in the movement of water through a plant. Which of these two processes makes the greater contribution to the movement of water up the trunk of a tree
Name two foods which are a good source of this vitamin. A balanced diet should contain enough energy to meet the body's needs. What else must it contain?
What is the name of the enzyme in gastric juice? What is the function of bile in digestion? State three ways in which the absorbing surface of the small intestine is increased.
What is the potential barrier for the molecule aggregation? Will the solution be stable at these conditions? Will it be stable at 100 mmol/L salt concentration?
What will be the consequence on interference fringes in Young’s double slit experiment if:
State the Huygens principle. For reflection of plane wave front at a plane reflecting surface, construct the corresponding reflected wave front. By using this diagram prove that the angle of inciden
Describe Young’s double slit experiment of interference of light waves. Compute the path difference between interfering waves and give conditions for maxima and minima. Get the expression for
Provide the construction and working of a compound microscope. Define and derive an equation for its magnifying power.
You are given with four lenses of focal lengths 1cm, 3cm, 10cm and 100 cm. Which two would you favor for a microscope and which two for a telescope?
Which type of shift keying technique is used in two tone modulation for code transmission? How is it beneficial than the other type of keying?
Define the word modulation. Describe the requirement of modulation. Name three different kinds of modulation used for a message signal by using a sinusoidal continuous carrier wave. Describe the mea
What do you mean by the term critical frequency for sky wave propagation? Write down an expression for the critical frequency in terms of the maximum electron density of the ionosphere. Determine th
What are ortho and para forms of hydrogen? Discuss the effect of temperature on ortho and para hydrogens? What is the difference between intramolecular and intermolecular hydrogen bonding? Describe wi
What are the three fundamental units of a communication system?
Explain Faraday’s laws of electrolysis. Describe Stark – Einstein Law of photochemical equivalence.
What is an electric polarization of a dielectric? What is the consequence on capacitance of a capacitor when a dielectric of width ‘t’ is placed between the two plates of parallel plate
Three charges Q, + q and + q are placed at the vertices of a right angle isosceles triangle as shown below. Find out the magnitude of Q for which total electrostatic energy of the configuration is z