SECTION - A
FORMAL EXPERIMENTAL PHYSICS
Experiment 1. To determine resistivity of two/three wires by plotting a graph of potential difference versus current.
Experiment 2. To find resistance of a given wire using metre bridge and hence determine the specific resistance of its material.
Experiment 3. To verify the laws of combination (series and parallel) of resistances using a metre bridge.
Experiment 4. To determine the resistance of a galvanometer by half deflection method and to find its figure of merit.
Experiment 5. To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
Experiment 6. To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same.
Experiment 7. To find the frequency of a.c. mains with sonometer.
ACTIVITIES IN PHYSICS
Activity 1. To measure the resistance and impedance of an inductor with and without iron core.
Activity 2. To use a multimeter for
(i) measuring resistances of carbon resistors and compare the measured values with those written in colour code.
(ii) finding the d.c. voltages of different tappings of an energised battery eliminator.
(iii) finding the output a.c. voltage of a step-down transformer (220-6 V).
(iv) continuity test of a cartridge fuse, a slide wire bridge and a potentiometer.
Activity 3. To assemble a household circuit comprising three bulbs, three (on/off) switches, a fuse and a power source.
Activity 4. To assemble the components for an electric circuit to measure internal resistance of a cell using a potentiometer.
Activity 5. In order to measure current through a resistor by measuring voltage across it, a student draws the circuit diagram comprising a battery, resistor, rheostat, ammeter, voltmeter and a one-way key as shown in Fig.
Mark the components that are not connected in proper order and correct the circuit diagram.
Activity 6. To study the variation in potential drop with length of a wire using a potentiometer.
SECTION B
FORMAL EXPERIMENTAL PHYSICS
Experiment 8. To find the value of v for different values of u in case of a concave mirror and hence find its focal length by plotting graphs between (i) u and v; (ii) 1/u and 1/v.
Experiment 9. To find the value of v for different values of u in case of a convex lens and hence find its focal length by plotting graphs between (i) u and v; (ii) 1/u and 1/v.
Experiment 10. To find the focal length of a convex mirror using a convex lens.
Experiment 11. To find the focal length of a concave lens using a convex lens.
Experiment 12. To determine angle of minimum deviation for a given glass prism by plotting a graph between the angle of incidence and the angle of deviation and hence to find the refractive index of the material of the prism.
Experiment 13. To determine the refractive index of a glass slab using a travelling microscope.
Experiment 14. To find the refractive index of water using a convex lens and a plane mirror.
Experiment 15. To find the refractive index of water using a concave mirror.
Experiment 16. (a) To draw the I-V characteristic curve of a p-n junction in forward bias and to determine the static and dynamic resistance of the given diode.
(b) To draw the 1-V characteristic curve of a per junction in reverse bias.
ACTIVITIES IN PHYSICS
Activity 7. To study effect of intensity of light on an LD.R (Light Dependent Resistor).
Activity 8. To identify a diode, a LED, a resistor and a capacitor from a mixed collection of such items.
Activity 9. To use a multimeter to:
(a) see the unidirectional flow of current in case of a diode and an LED.
(b) check whether a given electronic component (eg diode) is in working order
Activity 10. To observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab.
Activity 11. To observe diffraction of light due to a thin slit between sharp edges of two razor blades.
Activity 12. To study the nature and size of the image of a candle formed by a concave mirror on a screen (for different distances of the candle from the mirror).
Activity 13. To study the nature and size of the image formed by a convex lens using a candle and a screen (for different distances of the candle from the lens).
Activity 14. To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses.