| 1 |
Tissue paper allows it to pass through |
- A. Complete light
- B. Some part of light
- C. Special light
- D. Inadequste light
|
| 2 |
How does light travel in air. |
- A. In a circle
- B. Along curved path
- C. Along a straight line
- D. In dispersed path
|
| 3 |
The object through which light can pass completely. |
- A. Translucent
- B. Opaque
- C. Semi and opaque object
- D. Transparent
|
| 4 |
The speed of sound through water. |
- A. 340 meter per second
- B. 1500 meter per second
- C. 5000 meter per second
- D. 500 meter per second
|
| 5 |
Which things are transparent object. |
- A. Water
- B. Glass
- C. Air
- D. All of these
|
| 6 |
Light travels. |
- A. In straight line
- B. In the form of wave
- C. From time to time
- D. In the form of zig zag
|
| 7 |
Moon is |
- A. Luminous object
- B. Ligh emitting object
- C. Non-luminous object
- D. Opaque object
|
| 8 |
Sound is produced by |
- A. Vibrating object
- B. Transparent object
- C. Opaque object
- D. Translucent object
|
| 9 |
Speed of sound is maximum in |
- A. A metal wire
- B. Air
- C. Water
- D. Vacuum
|
| 10 |
Which object reflect maximum light. |
- A. White paper
- B. Coloured paper
- C. Mirror
- D. Brick wall
|
