How was your Physics Practical Examination?
Hello students!
It’s the time of AISSCE Practical Examination.
How was your Physics Practical Examination and Viva?
Which questions were asked to you?
Which were the experiments and activities you were asked to perform?
How farely did you do it?
Share your experience here as comments to this post. Your responses will be a boon for the others.
You can post the questions you were asked during Viva so that others can find the answers to them and learn for the Viva during their turn.
Categories: +2 Physics, 11 physics, 12 physics, ANSWERS TO QUESTIONS FROM VISITORS, Ask Physics, CBSE, CBSE PHYSICS CLASS XI, electrostatic induction, ELECTROSTATICS, Model Question Papers, PHYSICS, Physics Links, Practical Physics, previous question papers Tags:
Random collection of Physics Viva Questions
- State the Principle of a potentiometer. (The students say that potential drop is proportional to length but the constant quantities are not mentioned)
- How can we increase the sensitivity of a potentiometer?
- Define figure of merit of a galvanometer.
- Which has more resistance – a galvanometer or a milliammeter?
- How does an LED emit light?
- What is the difference between an ordinary diode and an LED?
- Define principal axis of a convex lens?
- What happens to the focal length of a concave mirror if it is immersed in water?
- What are the factors affecting the internal resistance of a cell?
- What are the difference between primary and secondary cell?
- Why can’t we use a dry cell for starting a car?
- What happens to the resistivity of a wire when it is doublefolded?
- How does the resistance of a wire depend on its dimensions?
- Why are the resistances used in a resistance box is like 1,2,2,5,10,20,20,50,100,200,
200,500,1000,2000,2000,5000 etc? - Why constantan or manganin wires are used for making the resistance coils in resistance box?
- What is a standard resistance?
- What are the characteristics of a standard resistance?
- What are the precautions to be observed while doing electricity experiments in general?
- What is a galvanometer?
- What is the resistance of an ideal ammeter?
- Why is ammeter always connected in series and voltmeter always connected in parallel?
- How can we convert a galvanometer into an ammeter or a voltmeter?
- What is shunt?
- What is AVO meter?
- What is the effect of temperature on the resistance of a conductor?
- Why does the resistance of a conductor increases with temperature, whereas that of a semiconductor decreases with temperature.
- What is conductance?
- What are non ohmic devices? give an example.
- What are superconductors?
- Define emf
- Why emf is said to be a misnomer?
- What happens if the battery used in the primary circuit of a potentiometer has less emf compared to the emf of the cell used in the secondary circuit?
- If you find that the galvanometer reading is shaky, what error can you expect?
- What do you mean by figure of merit of a galvanometer?
- Why a moving coil galvanometer is called so?
- What is the principle of a galvanometer?
Categories: +2 Physics, alternating currents, Answers, ANSWERS TO QUESTIONS FROM VISITORS, Ask Physics, Bare Minimum Package, change in resistance, free physics homework help, Practical Physics Tags: aissce, answer, CBSE, electricity, ELECTROSTATICS, interview, latest, numerical, numerical problem, paper, Physics, physics practical help, practical, practical viva, problem, published, question paper, question papers, viva, viva voce
Horizontal projectile and freely falling body
A rifle at a height H aimed horizontally fires a bullet to the ground. At the same time , a bullet with the same mass in dropped from the same height. Neglecting air resistance, which one hits the ground first?Explain. ED posted Answer: Both will hit t...
Categories: Ask Physics, Neglecting, Project, vertical acceleration, vertical velocity Tags: acceleration, acceleration due to gravity, air resistance, answer, Auto, body, Draft, ground, mass, Neglecting, Physics, Projectile, vertical velocity
What are the similarities and differences in magnetic and electric field?
Similarities and differences in magnetic and electric field (Dilpreet posted this question) Similarities Differences Both electric and magnetic field are conservative forcesBoth obey inverse square law Both are non contact forces (Forces can be exert...
Categories: Ask Physics, conservative forces, inverse square law, Project, Similarities, similarities differences Tags: Auto, Draft, Electric, electric flux, field, flux, forcesBoth, inverse, inverse square law, law, magnetic field, magnetic field lines, magnetic flux, Physics, Similarities, similarities and differences, similarities differences, surface
Electricfield, Magnetic Field and Photon
We know that photon has no charge. Then where from it gets electric and magnetic field in light? Malik Sajad asks Answer: Electric and magnetic fields are not produced by the photon; it is massless too. But, photon is created by time varying electric a...
Categories: Ask Physics, Electricfield, Project, sajad, varying magnetic field Tags: answer, Auto, charge, Draft, Electricfield, field, form, Learnt, magnetic field, magnetic fields, Physics, sajad, time
What is twin paradox?
TWIN PARADOX is a paradoxical situation coming in while explaining the theory of relativity. “Time dilation” is one of the important consequences of relativity. It says that if a body is moving with relativistic speeds, time will dialate ...
Categories: Ask Physics, caption, escape velocity, Project, relativistic travel, Relativity, time dilation, TWIN, twin paradox Tags: Auto, body, dialate, Draft, duration, paradox, paradoxical situation, person, Physics, relativistic speeds, speed, theory, theory of relativity, time dilation, twin paradox
Why direct currents aren’t used in Home circuits?
How can an alternating current change its direction while moving in a wire or any conductor? Why direct currents aren’t used in Home circuits? RAHUL ASKED Answer: Alternating current is produced by rotating a coil in a strong magnetic field (or ...
Categories: alternating currents, Ask Physics, direct currents, energy loss, Project Tags: answer, aren, Auto, Circuits, conductor, direct currents, direction, Draft, home, magnet, magnetic field, Physics, wire
