 |  Light 20 Flashcards |  Start |
 | What is the speed of light in a vacuum? |  Card: 1 / 20 |
| 3 x 10⁸ m/s | Card: 2 / 20 |
| Fill in the blank: Luminous objects produce their own ______. | Card: 3 / 20 |
| Light | Card: 4 / 20 |
| True or False: Non-luminous objects can produce their own light. | Card: 5 / 20 |
| False. Non-luminous objects do not produce light; they reflect light from luminous objects. | Card: 6 / 20 |
| Riddle: I can be seen but not touched, I travel in straight lines and can be reflected or refracted. What am I? | Card: 7 / 20 |
| Light | Card: 8 / 20 |
| Which of the following is a natural source of light? A) Electric bulb B) Candle C) Tube light D) Star | Card: 9 / 20 |
| D) Star | Card: 10 / 20 |
|  Unlock all Flashcards with EduRev Infinity Plan Starting from @ ₹99 only | |
| Fill in the blank: ______ occurs when light bends as it passes through a different material. | Card: 11 / 20 |
| Refraction | Card: 12 / 20 |
| True or False: Transparent materials block all light from passing through. | Card: 13 / 20 |
| False. Transparent materials allow light to pass through easily. | Card: 14 / 20 |
| What type of material allows only a small amount of light to pass through? | Card: 15 / 20 |
| Translucent materials | Card: 16 / 20 |
| Riddle: I am a shadow's form, created when light is blocked, I am dark but not an object. What am I? | Card: 17 / 20 |
| A shadow | Card: 18 / 20 |
| Which object can create a shadow? A) Air B) Glass C) Wood D) Water | Card: 19 / 20 |
| C) Wood | Card: 20 / 20 |
| Completed! Keep practicing to master all of them. |  Restart |
