Question
| Column A | Column B |
| Q.1. Pinhole | (a) Blocks light completely camera |
| Q.2. Opaque object | (b) The dark region formed behind the object |
| Q.3. Transparent object | (c) Forms an inverted image |
| Q.4. Shadow | (d) Light passes almost completely through it |
| Column A | Column B |
| Q.1. Pinhole | (a) Blocks light completely camera |
| Q.2. Opaque object | (b) The dark region formed behind the object |
| Q.3. Transparent object | (c) Forms an inverted image |
| Q.4. Shadow | (d) Light passes almost completely through it |
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| Column A | Column B |
| Q.1. Materials which transfers heat | (a) Wiod |
| Q.2. Metal stored in kerosene | (b) Gold |
| Q.3. Non-metal essential for life | (c) Sodium |
| Q.4. Nor-conductor of electricity | (d) Oxygen |
| (e) Conductor |
| Column I | Column II |
| A. Vegetative part | 1. Vegetative reproduction by roots |
| B. Dahlia | 2. Sori |
| C. Bread mould | 3. Stem |
| D. Fern | 4. Sporangium |
| Column I | Column II |
| A. Salivary gland | 1. Bile juice secretion |
| B. Stomach | 2. Storage of undigested food |
| C. Liver | 3. Saliva secretion |
| D. Rectum | 4. Acid release |
| 5. Digestion is completed |
| Column A | Column B |
| Q.1. Gills | (a) Helps in breathing |
| Q.2. Pancreas | (b) Stores undigested food |
| Q.3. Rectum | (c) Gas exchange in lungs |
| Q.4. Alveoli | (d) Exchange of gases in fish |
| (e) Secretes digestive enzymes |
| Column A | Column B |
| Q.1. Oxygen wiring | A. Needed for growth |
| Q.2. Carbon wounds | B. Antiseptic for |
| Q.3. Chlorine and energy | C. Essential for |
| Q.4. Iodine purification | D. Used in water |
| Column A | Column B |
| Q.1. If the torch is close to the ball | (a) The shadow would be smaller |
| Q.2. If the torch is far away | (b) The shadow would be larger |
| Q.3. If the ball is removed from the set-up | (c) Two shadows would appear on the screen |
| Q.4. If two torches are present in the set-up on the left side of the ball | (d) A bright spot would appear on the screen |
| Column A | Column B |
| Q.1. Hormones | (a) Mood swings |
| Q.2. Puberty | (b) Chemical messengers |
| Q.3. Acne and pimples | (c) Capable of reproduction |
| Q.4. Emotional changes | (d) Oily secretion of skin |
| Column A | Column B |
| Q.1. Sundial | (a) Used in vehicles to measure distance |
| Q.2. Stopwatch | (b) Oscillatory motion |
| Q.3. Odometer | (c) Shadow-based clock |
| Q.4. Atomic clock | (d) Measures very short time intervals |
| (e) Most accurate |
| Column I | Column II |
| (a) Stomata | (i) Absorption of water |
| (b) Xylem | (ii) Transpiration |
| (c) Root hairs | (iii) Transport of food |
| (d) Phloem | (iv) Transport of water |
| (v) Synthesis of carbohydrates |
| Column I | Column II |
| (a) A plane mirror | (i) Used as a magnifying glass. |
| (b) A convex mirror | (ii) Can form image of objects spread over a large area. |
| (c) A convex lens | (iii) Used by dentists to see enlarged image of teeth. |
| (d) A concave mirror | (iv) The image is always inverted and magnified. |
| (v) The image is erect and of the same size as the object. | |
| (vi) The image is erect and smaller in size than the object. |