Physics MCQ'S

1. If we add all the 7 colours of rainbow (red, yellow, blue, green, orange, violet and indigo), the resultant colour would be?
1. White
2. Black
3. Maroon
4. Dark Blue


2. When white light passes through a prism, it splits into __________ colours.
1. 5
2. 6
3. 7
4. 8


3. A camera uses a __________ to form an image on a piece of film at the back.
1. convex lens
2. concave lens
3. diverging lens
4. none of these


4. Short-sight defect could be corrected by a __________.
1. convex lens
2. concave lens
3. converging lens
4. none of these


5. Red + Green + Blue = ?
1. White
2. Black
3. Maroon
4. Dark Blue


6. Ozone layer protects the Earth from __________ radiations from the Sun.
1. microwaves
2. infrared
3. X-rays
4. ultraviolet


7. The distance of Moon from the Earth is __________ km.
1. 364,000
2. 384,000
3. 464,000
4. 484,000


8. There are __________ planets in orbit around the Sun.
1. 6
2. 7
3. 8
4. 9


9. Planets are kept in orbit by the?
1. Attraction among the Planets
2. Attraction among the Planets and the Sun
3. Radiations from the Sun
4. Gravitational pull of the Sun


10. Which from the following is NOT a Renewable Energy?
1. Geothermal
2. Solar
3. Nuclear
4. Bio-fuels                                                                                                                                                         ANSWERS                         

1. A
2. B
3. A
4. B
5. A
6. D
7. B
8. C
9. D
10. C