Science Questions with Diagrams

Science Section Questions with Diagrams

PHYSICS

• Chapter 1: Light - Reflection and Refraction

  1. Draw the following diagram in your answer-book and show the formation of image of the object, AB with the help of suitable rays. [1M]
  2. Draw the given diagram in your answer book and complete it for the path of ray of light beyond the lens. [1M]
  3. For a ray of light passing through a glass slab, the lateral displacement was correctly measured as: [1M] (a) AB (b) PQ (c) CD (d) PR
  4. While tracing the path of a ray of light passing through a rectangular glass slab a student tabulated his observations as given below: [1M] (a) I (b) II (c) III (d) IV
  5. A student focussed the image of a distant object using a device 'X' on a white screen 'S' as shown in the figure. If the distance of the screen from the device is 40 cm, select the correct statement about the device. [1M] (a) The device X is a convex lens of focal length 20 cm (b) The device X is a concave mirror of focal length 40 cm (c) The device X is a convex mirror of radius of curvature 40 cm (d) The device X is a concave lens of focal length 40 cm.
  6. Study the following ray diagrams [1M] (a) I (b) II (c) III (d) IV
  7. Out of the five incident rays shown in the figure find the three rays which are obeying the laws of refraction and may be used for locating the position of the image formed by a convex lens. [1M] (a) 1, 2 and 3 (b) 2, 3 and 4 (c) 3, 4 and 5 (d) 1, 3 and 4
  8. Select from the following the best set-up for tracing the path of a ray of light through a rectangular glass slab: [1M] (a) I (b) II (c) III (d) IV
  9. In an experiment to trace the path of a ray of light through a glass prism for different angles of angle of incidence a student would find that the emergent ray: [1M] (a) Is parallel to the incident ray (b) Is perpendicular to the incident ray (c) Is parallel to the refracted ray (d) Bends at an angle to the direction of the incident ray
  10. A student wants to obtain magnified image of an object AB as on a screen. Which one of the following arrangements shows the correct position of AB for further to be succeeded? [1M] (a) (Diagram a) (b) (Diagram b) (c) (Diagram c) (d) (Diagram d)
  11. The following diagram shows the use of an optical device to perform an experiment of light. As per the arrangement shown, the optical device is likely to be a [1M] (a) Concave mirror (b) Convex mirror (c) Convex lens (d) Concave lens
  12. For the diagram shown, according to the new Cartesian sign convention the magnification of the image formed will have the following specifications: [1M] (a) Sign - Positive, Value - Less than 1 (b) Sign - Positive, Value - More than 1 (c) Sign - Negative, Value - Less than 1 (d) Sign - Negative, Value - More than 1
  13. A ray of light is incident as shown. If A, B and C are three different transparent media, then which among the following options is true for the given diagram? [1M] (a) ∠1 < ∠4 (b) ∠1 < ∠2 (c) ∠3 = ∠2 (d) ∠3 > ∠4
  14. Which of the following statements is not true in reference to the diagram shown above? [1M] (a) Image formed is real (b) Image formed is enlarged (c) Image is formed at a distance equal to double the focal length (d) Image formed is illustrate your answer.
  15. In the diagram shown above n1, n2 and n3 are refractive indices of the media 1, 2 and 3 respectively. Which one of the following is true in this case? [1M] (a) n1 = n2 (b) n1 > n2 (c) n2 > n3 (d) n2 = n3

• Chapter 2: Human Eye and Colourful World

  16. Observe the following diagram and [2M] (i) Identify the defect of vision shown. (ii) List its two causes. (iii) Name the type of lens used for the correction of this defect. OR (B) The colour of clear sky from the earth appears blue but from the space it appears black. Why?
  17. A narrow beam PQ of white light is passing through a rectangular glass slab ABC as shown in the diagram. [3M] (i) Trace on your answer sheet and show the path of the emergent beam as observed on the screen DE. (ii) Name the name and cause of the phenomenon observed. (iii) Where else in nature is this phenomenon observed? (iv) Based on this observation, state the constituents of white light.
  18. In the following diagram, the path of a ray of light passing through a glass prism is shown: [1M] (a) ∠i and ∠e (b) ∠A and ∠D (c) ∠r and ∠D (d) ∠i, ∠A and ∠D
  19. Study the following diagrams in which the path of a ray of light passing through a glass prism is shown. Identify the path of the ray by four students P, Q, R and S as shown: [1M] (a) P (b) Q (c) R (d) S
  20. In the following ray diagram the correctly marked angles are: [1M] (a) ∠i and ∠e (b) ∠A and ∠D (c) ∠i and ∠r (d) ∠r, ∠A and ∠D
  21. Study the following ray diagram: [1M] (a) y, p, z (b) x, q, z (c) p, y, z (d) p, z, y
  22. A student very cautiously traces the path of a ray through a glass prism of different values of the angle of incidence (∠i). He measures the corresponding values of the angle of refraction (∠r) and the angle of emergence (∠e) in every case. The correct measurement of all these measurement of angles, his conclusion would be [1M] (a) ∠i > ∠r (b) ∠i < ∠r (c) ∠i = ∠e (d) ∠r = ∠e
  23. In the diagram given below, X and Y are the end colours of the spectrum of white light. Then the colour of Y represents the [1M] (a) Colour of sky as seen from earth during the day (b) Colour of the sky as seen from the moon (c) Colour used to paint the danger signals (d) Colour of sun at the time of noon

• Chapter 3: Electricity

  24. Two V-I graphs A and B for series and parallel combination of two resistances are shown. Giving reason state which graph shows [5M] (i) series combination (ii) parallel combination

• Chapter 4: Magnetic Effects of Electric Current

  25. Name the point P, Q and R of the magnets in the following figures 'a' and 'b'. [2M]
  26. If the U shaped magnet is held vertically and the magnetic field lines between its poles are horizontal, with its N pole towards south and S pole towards north, then on passing current through the wire from A to B as shown, in which direction will the wire move? [3M]
  27. A student was asked to study the force on a current carrying conductor in a magnetic field. He took a small aluminium rod AB, a strong horse shoe magnet, some connecting wires, a battery and a switch and connected them as shown. He observed that on passing current the rod AB moves. Explain the reason for this observation. Based on your understanding of this phenomenon answer the following questions: [5M] (a) Why does the rod get displaced on passing current through it? (b) State the rule that determines the direction of the force on the conductor AB.
  28. The correct pattern of magnetic field lines of the field produced by a current carrying circular loop is: [1M] (a) (Diagram a) (b) (Diagram b) (c) (Diagram c) (d) (Diagram d)
  29. An alpha particle enters a uniform magnetic field as shown. The direction of force experienced by the alpha particle is: [1M] (a) Towards right (b) Towards left (c) Into the page (d) Out of the page

CHEMISTRY

• Chapter 2: Acids, Bases and Salts

  30. Study the diagram given below and identify the gas formed in the reaction. [1M] (a) Carbon di-oxide which extinguishes the burning candle (b) Sulphur di-oxide which produces a suffocating smell (c) Hydrogen which while burning produces a popping sound (d) Sulphur di-oxide due to which the candle burns more brightly
  31. Study the experimental set up shown in given figure and choose the correct option from the following: [1M] (a) The solution becomes light orange. (b) Water floats over the surface of acetic acid. (c) Acetic acid floats over the surface of water. (d) The solution becomes light green.
  32. 50.0 mL of tap water was taken in a beaker. Hydrochloric acid was added drop by drop to water. The temperature and pH of the solution was noted. The following graph was obtained. Choose the correct statements related to this activity: [1M] (i) The process of dissolving an acid in water is highly exothermic. (ii) The pH of the solution increases rapidly on addition of acid. (iii) The pH of the solution decreases rapidly on addition of acid. (iv) The pH of tap water was around 7.0. (a) (i) and (ii) (b) (iii) and (iv) (c) (ii) and (iv) (d) (i) and (iii)

• Chapter 3: Metals and Non-metals

  33. Which one of the following structures correctly depicts the compound CaCl2? [1M] (a) (Diagram a) (b) (Diagram b) (c) (Diagram c) (d) (Diagram d)

• Chapter 4: Carbon and its Compounds

  34. How are structure (i) and structure (ii) related to one another? Give reason to justify your answer. [5M]
  35. Consider the following organic compounds: [1M] (a) Name the functional group present in these compounds. (b) Write the general formula for the compounds of this functional group. (c) State the relationship between these compounds and draw the structure of any other compound having similar functional group.
  36. A student added acetic acid to test tubes I, II, III and IV containing the labeled substances and then brought a burning splinter near the mouth of each test tube. [1M] (a) (i) (b) (ii) (c) (iii) (d) (iv)

BIOLOGY

• Chapter 1: Life Processes

  37. Examine the following statements to connection with the functions of the blood vessels marked A and B in the diagram of a human heart as shown. [1M] (i) Blood vessel A - It carries carbon dioxide rich blood to the lungs. (ii) Blood vessel B - It carries oxygen rich blood from the lungs. (iii) Blood vessel B - Left atrium relaxes as it receives blood from this blood vessel. (iv) Blood vessel A - Right atrium has thick muscular walls hence to pump blood to this blood vessel. The correct statements are (a) (i) and (ii) only (b) (ii) and (iii) only (c) (ii), (iii) and (iv) (d) (i), (ii) and (iii)
  38. Which of the following statements are correct in reference to the role of (shown in the given diagram) during a breathing cycle in human beings? [1M] (i) It helps to decrease the residual volume of air in lungs. (ii) It flattens as we inhale. (iii) It gets raised as we inhale. (iv) It helps the chest cavity to become larger. (a) (ii) and (iv) (b) (iii) and (iv) (c) (i) and (ii) (d) (i), (ii) and (iv)
  39. Which one of the following conditions is true for the state of stomata of a green leaf shown in the given diagram? [1M] (a) Large amount of water flows into the guard cells. (b) Gaseous exchange is occurring in large amount. (c) Large amount of water flows out from the guard cells. (d) Large amount of sugar collects in the guard cells.
  40. A student was asked to write a stepwise procedure to demonstrate that carbon dioxide is necessary for photosynthesis. He wrote the following steps. The wrongly worded step is [1M] (a) Both potted plants are kept in dark room for at least three days. (b) Bottom of the bell jars is sealed to make them air tight. (c) Both potted plants are kept in sunlight after the starch test. (d) A leaf from both the plants is taken to test the presence of starch.
  41. Respiratory structures of two different animals a fish and a human being are as shown. [1M] (a) Both are placed internally in the body of animal. (b) Both have thin and moist surface for gaseous exchange. (c) Both are poorly supplied with blood vessels to conserve energy (d) In both the blood returns to the heart after being oxygenated.
  42. Observe the diagram of an activity given below. What does it help to conclude, when person exhales into the testtube? [1M] (a) Percentage of carbon dioxide is more in inhaled air. (b) Fermentation occurs in the presence of oxygen. (c) Percentage of carbon dioxide is more in the exhaled air. (d) Fermentation occurs in the presence of carbon dioxide.
  43. The haemodialyzer has semi-permeable lining of tubes which help: [1M] (a) To maintain osmotic pressure of blood (b) To filter nitrogenous wastes from the dialysing solution (c) In passing the waste products in the dialysing solution (d) To pump purified blood back into the body of the patient
  44. Observe the following diagram and identify the process and its significance from the following options: [1M] (a) Evaporation : maintains water contents in leaf cells. (b) Transpiration : creates a suction force which pulls water from the plant. (c) Excretion : helps in excreting out waste water from the plant. (d) Translocation : helps in transporting materials from one cell to another.

• Chapter 2: Control and Coordination

  45. Write A and B in the given flow chart on neuron through, where information travels as an electrical impulse. [2M]

• Chapter 3: How do Organisms Reproduce?

  46. List two reasons for the appearance of variations among the progeny formed by sexual reproduction. (b) [3M] (i) Name the part marked 'A' in the diagram. (ii) How does 'A' reaches part 'B'? (iii) State the importance of the part 'C' (iv) What happens to the part marked 'D' after fertilization is over?
  47. Identify A, B and C in the given diagram and write their functions. [5M]
  48. Name the parts labelled as A, B, C and D in the diagram given below. [5M]
  49. Identify the given diagram. Name the parts 1 to 5. [5M]
  50. A student after observing a slide showing different stages of binary fission in Amoeba draws the following diagrams. However these diagrams are not in proper sequence. [1M] The correct sequence is: (a) I, V, IV, III, II (b) I, IV, V, II, III (c) I, III, IV, II, V (d) I, III, II, V, IV
  51. In the figure, the parts marked A, B and C are sequentially [1M] (a) Plumule, Cotyledon and Radicle (b) Radicle, Cotyledon and Plumule (c) Cotyledon, Plumule and Radicle (d) Radicle, Plumule and Cotyledon