| 1 |
The speed of sound through Iron. |
- A. 340 meter per second
- B. 1500 meter per second
- C. 5000 meter per second
- D. 500 meter per second
|
| 2 |
Sound is produced by |
- A. Vibrating object
- B. Transparent object
- C. Opaque object
- D. Translucent object
|
| 3 |
Speed oflight travels is one second. |
- A. 200,000 km
- B. 300,000 km
- C. 400,000 km
- D. 500,000 km
|
| 4 |
Which of the following sounds is called noise. |
- A. Sound of a flute
- B. Rusting of leaves
- C. Pressure horn
- D. Chirping of birds
|
| 5 |
Which things are transparent object. |
- A. Water
- B. Glass
- C. Air
- D. All of these
|
| 6 |
How does light travel in air. |
- A. In a circle
- B. Along curved path
- C. Along a straight line
- D. In dispersed path
|
| 7 |
Moon is |
- A. Luminous object
- B. Ligh emitting object
- C. Non-luminous object
- D. Opaque object
|
| 8 |
Which of the following object in luminous. |
- A. Book
- B. Candle
- C. Bulb
- D. Sun
|
| 9 |
Tissue paper allows it to pass through |
- A. Complete light
- B. Some part of light
- C. Special light
- D. Inadequste light
|
| 10 |
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
|
