physics 2marks&1marks

Physics
2 Marks Questions

1. Differentiate between Mass and Weight of the body?
2. What is the necessity of banking of roads?
3. Draw a neat diagram of p – n junction diode in : (A) forward bias condition (B) Reverse bias condition
4. What is Artificial Transmutation? Give an example?
5. What is Centrifuge? How does it work? Give one domestic example where the principle of centrifuge is
Involved?
6. State inverse square law of Magnetism?
7. What is doping?
8. What are the isobars? Give an example?
9. Explain the working of laundry drier?
10. State and explain Lenz’s law?
11. What are Isotopes? Give an example?
12. Write the Newton’s law of universal gravitation. Calculate the gravitational force on an object of
mass10kg.
13. What is the principle, of a Screw Gauge?
14. Draw a neat diagram of magnetic lines of force, when the south pole of a magnet faces geographical north.
Locate the null points?
15. Calculate the equivalent resistance of two resistors 100 Ω and 1 Ω connected in parallel.
16. Distinguish between a machine language and a high level language
17. Distinguish between progressive and a stationary waves?
18. Define the terms: a) magnetic susceptibility b) Magnetic Permeability
19. Mention the applications of Radio Isotopes in industry?
20. Derive the relation between acceleration due to gravity and universal gravitational constant?
21. Mention few incidents of resonance Phenomenon observed in your day to day life?
22. State (A) Joule’s Law (B) Fleming’s Right Hand Rule
23. How important is a computer in modern day life?
24. A body is projected upwards with a velocity of 20 m/s. find the maximum height reached by the body
[g = 10 m/s2]
25. Draw the diagram of electromagnetic waves?
26. What is the principle of lunching a satellite into the orbit?
27. What are the basic process involved in the working of a laser?
28. What is the role of a moderator in a nuclear reactor?
29. Distinguish between Node and Antinodes?
30. What is the angular velocity of the earth about its own axis?
31. Draw magnetic lines of force around a bar magnet when its s – pole points towards the geographical N –
pole of the earth.
32. Distinguish between Natural radioactivity and Artificial Radioactivity?
33. Define the terms (a) Electron Current (b) Hole Current
34. Find the length of a simple pendulum whose time period is 1.8 seconds. (Given g = 9.8 m/s2)
35. What is Nuclear Fusion? Give one example with equation?
36. How do you distinguish laser light from an ordinary light in terms of the property of ‘Coherence’?
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1 Marks Question (Physics)

1. A ball is thrown up and attains a maximum height of 80 m. find its initial speed?
2. State the law of radioactive disintegration?
3. State Hook’s law?
4. In a resonating air column experiment with a closed end tube, first resonance occurs when the length of air
Column is 10cm. find out the length of the air column for the occurrence of second resonance.
5. Define the mass Detect?
6. Calculate the equivalent resistance of two resistors of 6ohms and 4 ohms connected in parallel?
7. What are isobars? Give one example?
8. What are the ferromagnetic substances? Give one examples?
9. Define a Byte?
10. What is Radiography?
11. Distance between a node and the next antinodes in a stationary wave is 10cm. find the wavelength?
12. The weight of the body is not the same on the surface of the earth at all places. Specify the reason?
13. The mass detect when helium nucleus is formed, is 0.0303 amu. Calculate the binding energy?14. Define Resonance?
15. On what principle does a transformer works?
16. What is Binding energy?
17. What are the uses of Hard X – rays?
18. The resistance of manganin wire of 1 mm2 cross-sectional area of 15 Ω. Find the resistance of the
manganin wire of same length but cross-section of 3mm2.
19. Draw the symbol of p-n-p transistor?
20. What is the principle of a Vernier?
21. Write two examples of Resonance from day to day life situations?
22. What is the total e.m.f when three cells of voltages 1V, 1.5 V and 2 V are connected in series?
23. What is meant by magnetic moment?
24. Give some examples for oscillatory motion observed in your day to day life?
25. What is the reason for depletion of Ozone layer in atmosphere?
26. Distinguish between Galvanometer and Ammeter?
27. What do you meant by Time of Flight?
28. Draw a figure showing the formation of a stationary wave?
29. What is meant by Stationary orbit?
30. Why is the weight of a body not the same at poles and at the equator?
31. Draw an electric circuit and label its parts?
32. Distinguish between atomic mass and Atomic Number?