Experimental Skills Notes for JEE

Subtopics in Experimental Skills

• Vernier calipers - its use to measure the internal and external diameter and depth of a vessel
• Screw gauge - its use to determine the thickness/diameter of thin sheet/wire
• Simple pendulum - dissipation of energy by plotting a graph between the square of amplitude and time
• Metre scale - the mass of a given object by the principle of moments
• Young's modulus of elasticity of the material of a metallic wire
• Surface tension of water by capillary rise and effect of detergents
• Co-efficient of viscosity of a given viscous liquid by measuring the terminal velocity of a given spherical body
• Speed of sound in air at room temperature using a resonance tube
• Specific heat capacity of a given (i) solid and (ii) liquid by method of mixtures
• The resistivity of the material of a given wire using a metre bridge
• The resistance of a given wire using Ohm's law
• Resistance and figure of merit of a galvanometer by half deflection method
• The focal length of convex mirror, concave mirror, and convex lens, using the parallax method
• The plot of the angle of deviation vs angle of incidence for a triangular prism
• The refractive index of a glass slab using a travelling microscope
• Characteristic curves of a p-n junction diode in forward and reverse bias
• Characteristic curves of a Zener diode and finding reverse breakdown voltage
• Identification of diode, LED, resistor, a capacitor from a mixed collection of such items