Question
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Answer
- (c)
- (d)
- (a)
- (b)
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| 1. | Real image | (a) | Diffuse reflection |
| 2. | Virtual image | (b) | An optical device which produces reflection |
| 3. | Mirror | (c) | Cannot be taken on screen |
| 4. | A type of light scattering | (d) | Can be taken on screen |
Match the following
| 1. | Rohini | GSLV-Mark III |
| 2. | GSAT-14 | GSLV Mark III M1 |
| 3. | GSAT-19 | SLV-3 |
| 4. | Chandrayaan-2 | PSLV-XL C25 |
| 5. | Mangalyaan | GSLV-D5 |
| Particle | Charge | Discoverer | |||
| i) | Proton | a) | n | 1. | James Chadwick |
| ii) | Electron | b) | P | 2. | Rutherford |
| iii) | Neutron | c) | e | 3. | J.J. Thomson |
| 1. | Nylon | (a) | Artificial silk |
| 2. | PET | (b) | Artificial wool |
| 3. | Rayon | (c) | Parachute |
| 4. | Acrylic | (d) | Polyester |
| 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
| 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 |
| 1. | Length | (a) | ampere (A) |
| 2. | time | (b) | kelvin (K) |
| 3. | Mass | (c) | metre (M) |
| 4. | Temperature | (d) | second (S) |
| 5. | Electric current | (e) | kilogram (K) |
Arrange in Correct Sequence
| 1. | Mix water, starch, vinegar and glycerin in a cooking pot. |
| 2. | Let the article cool for 24 hours before we use it. |
| 3. | Shape material to form a cup or bowl. |
| 4. | Continuously mix on medium heat until the liquid turns clear. |
| 5. | When the liquid begins to bubble it is ready to be taken off the stove. |
| 6. | Spread the gel onto aluminium foil and cool. |