Aim To trace the path of the rays of light through glass prism. Materials Required Theory A prism is a portion of refracting medium bounded by the planes inclined to each other at an angle. When a ray of light travels from a rarer medium towards denser medium, it bends towards the normal. if the […]
Aim To trace the path of a ray of light passing through a rectangular glass slab for different angles of incidence. Measure the angle of incidence, angle of refraction, angle of emergence and interpret the result. Materials Required Drawing board Drawing pins Three plane sheets of white paper A rectangular glass slab Geometry instruments Sharp […]
Aim To determine the equivalent resistance of two resistors when connected in parallel. Materials Required Theory When two or more resistors are connected together between two points then they are said to be connected in parallel. In parallel combination, The formula to calculate equivalent resistance in series is: 1/Rp = 1/R1 + 1/R2 + 1/R3 Circuit Diagrams Procedure […]
Aim To determine the equivalent resistance of two resistors when connected in series. Materials Required Two resistors A battery eliminator Ammeter Plug key Connecting wires A piece of sandpaper Voltmeter Rheostat Theory When two or more resistors are connected end to end to each other, then they are said to be connected in series. In […]
Aim To determine the focal length of a convex lens by obtaining the image of a distant object. Apparatus Required Theory For an object placed at infinity (practically a distant object), the image formed by a convex lens lies at the focus F of the convex lens. Distance between the optical centre O and the […]
Aim To determine the focal length of a concave mirror by obtaining the image of a distant object. Apparatus Required Theory Procedure Observations S. No. Name of the object Distance between mirror and screen(Focal length) 1. Pole f1 = 29.8 cm 2. Tree 1 f2 = 30 cm 3. Tree 2 f3 = 30 cm […]
Aim To study the dependence of current (I) on the potential difference (V) across a resistor and determine its resistance. Also plot a graph between V and I. Materials Required Battery eliminator Ammeter Voltmeter Rheostat One way plug key Resistor Connecting wires Theory Ohm’s Law: At constant temperature, the potential difference (V) across a conductor […]