Very Important questions from previous question papers of Applied Physics 2

Short answer questions:

Q1. Define reflection of light.  State and explain its laws.
Q2. Define refraction of light. State and explain its laws. Also dine refractive index?
Q3. Explain power of a lens. Give its relation and units.
Q4.Give the application of TIR.
Q5. Define electric lines of force.  Explain its properties.
Q6. What is a capacitor.  Define capacitance and give its relation and units.
Q7. Describe the factors of parallel plate capacitor on which the capacitance of a capacitor depends upon.
Q8. Difference between AC and DC.
Q9.Difference between E.m.f and potential difference.
Q10. State Ohm's law with diagram and relation and units. And give experimental verification of Ohm's law.
Q11. Find the equivalent resistance when three resistances are connected in series and parallel.
Q12. Define a magnetic line of force.  Explain its properties.
Q13. State and explain Faraday laws of electromagnetic induction.
Q14. Explain Spontaneous emission,  stimulated emission  and population inversion with diagram.
Q15. Explain the properties of laser light.
Q16. Difference between longitudinal and transverse waves.
Q17. Difference between sound and light waves.
Q18.Describe free , forced and resonant vibrations with examples.
Q19. Difference between echo and reverberation.
Q20. What is magnetic field and its units. Also define magnetic flux and its units.

Long answer questions:

Q1. Derive the lens formula for a convex lens. (Real and virtual)
Q2. Explain TIR with diagram.  Give its conditions. Also prove u = 1/sin C.
Q3. Explain construction,  working and principle of simple microscope with their magnification power and its relation.
Q4. Explain construction,  working and principle of compound microscope with their magnification power and its relation.
Q5. Explain construction,  working and principle of astronomical telescope with their magnification power and its relation.
Q6. State and explain coulomb's law in electrostatic. Derive its relation and also define 1 coulomb.
Q7. State and explain Kirchhoff's laws of electricity.
Q8. What is whetstone bridge. Derive it's relation with condition of it.
Q9. Describe principle,  construction and working of a moving coil galvanometer.
Q10. Describe principle,  construction and working of ruby laser.
Q11. Describe engineering applications of lasers.

Important numericals:

Q1. The refraction index of water is 4/3 and that of glass is 3/2. What will be the refractive index of glass w.r.t. water ?
Q2. The image of an object placed 15cm from a lens is formed erect and double size of object.  What will be the focal length and nature of lens.
Q3.the spectacles to a patient with a combination of a convex lens of focal length 40 cm and a concave lens of 25 cm focal length. What will be the power of spectacles.
Q4. An electron and a proton are at a distance of 1000 from each other in a free space. Compute the force between them.
Q5. Three identical capacitors each of capacitance C coulomb are connected in series. This combination is connected with one more similar capacitor.  Find the capacitance of whole combination.
Q6. If length and area of cross section of a conductor are doubled, find the net resistance of conductor.
Q7. A lamp draws a current of 0.3 A at 240 volt. Find the resistance of lamp.
Q8. Find the distance of an unknown object from the earth , if laser beam takes 5seconds to return after reflection from it.
Q9. A tuning fork vibrates with a frequency of 356 Hz to produce sound waves which travel through air with a velocity of 330 m/s. What is the wavelength of the sound produced.?