# Tracing the path of the rays of light through a glass prism

Aim To trace the path of the rays of light through glass prism. Materials Required A drawing board Few drawing pins A glass prism Few sharp pointed alpins Three sheets of white paper A measuring scale A pencil A protractor Theory A prism is a portion of refracting medium bounded by the planes inclined to […]

# Tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence

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 […]

# Determination of equivalent resistance of two resistors when connected in parallel

Aim To determine the equivalent resistance of two resistors when connected in parallel. 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 together between two points then they are said to be connected in parallel. In parallel combination, […]

# Determination of equivalent resistance of two resistors when connected in series

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 […]

# Determination of the focal length of Convex lens by obtaining the image of a distant object

Aim To determine the focal length of a convex lens by obtaining the image of a distant object. Apparatus Required Convex lens A meter scale A screen A lens holder A screen holder Theory For an object placed at infinity (practically a distant object), the image formed by a convex lens lies at the focus […]

# Determination of the focal length of Concave mirror by obtaining the image of a distant object

Aim To determine the focal length of a concave mirror by obtaining the image of a distant object. Apparatus Required Concave mirror A meter scale A screen A mirror holder A screen holder Theory A concave mirror is defined as the spherical mirror whose reflecting surface is curved inwards and follows laws of reflection of […]

# To study the dependence of current on the potential difference with graph

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 […]