Question
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Answer
- (b)
- (d)
- (a)
- (c)
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| 1. | Rubber | (a) | Erect |
| 2. | Greased paper | (b) | Inverted |
| 3, | Real image | (c) | Opaque medium |
| 4. | Virtual image | (d) | Translucent medium |
Match the following items.
→| Column 1 | Column 2 | ||
| 1. | Area | a. | light year |
| 2. | Distance | b. | m$^3$ |
| 3. | Density | c. | m$^2$ |
| 4. | Volume | d. | kg |
| 5. | Mass | e. | kg/m$^3$ |
Match the following.
| 1. | Monera | Moulds |
| 2. | Protista | Bacteria |
| 3. | Fungi | Neem |
| 4. | Plantae | Butterfly |
| 5. | Animalia | Euglena |
| Element | Symbol | Atomic No. | |||
| i) | Hydrogen | a) | 0 | 1. | 11 |
| ii) | Helium | b) | Al | 2. | 8 |
| iii) | Aluminium | c) | He | 3. | 1 |
| iv) | Oxygen | d) | Na | 4. | 2 |
| v) | Sodium | e) | H | 5. | 13 |
Match the following
| Sr. No. | A | B | C |
| 1. | Melting | Change of state from liquid to solid | Ticking of clock |
| 2. | Condensation | Change of state from liquid to gas | Formation of ice cube |
| 3. | Evaporation | Change of state from solid to liquid | Collecting flowers |
| 4. | Freezing | Change of state from gas to liquid | Ice cube to water |
| 5. | Periodic change | Occurs at irregular time intervals | Water to steam |
| 6. | Non-periodic change | Occurs at regular time intervals | Steam to water drops |
| Pellagra | (a) | Water |
| Allergies | (b) | Folic acid |
| Rabies | (c) | Pollen |
| Anaemia | (d) | skin |
Match the following
| i. | Clinical thermometer | A form of energy |
| ii. | Normal temperature of human body | 100°C |
| iii. | Heat | 37°C |
| iv. | Boiling point of water | 0°C |
| v. | Melting point of water | Kink |
Match the Following
| A | B |
| Nylon | Thermoplastic |
| PVC | Thermosetting plastic |
| Bakelite | Fibre |
| Teflon | Wood pulp |
| Rayon | Non-stick cookwares |
