MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When a beam of red, blue and green light falls at the same place, the color of the light becomes - |
| A. | White |
| B. | Yellow |
| C. | Purple |
| D. | Red |
| Answer» B. Yellow | |
| 2. |
Which color is in the middle of the rainbow? |
| A. | Red |
| B. | Yellow |
| C. | Green |
| D. | Blue |
| Answer» D. Blue | |
| 3. |
Which one of the following energy transformations is accomplished by the process of photosynthesis? |
| A. | chemical energy from light energy |
| B. | thermal energy from light |
| C. | thermal energy to biochemical energy |
| D. | kinetic energy to chemical energy |
| Answer» B. thermal energy from light | |
| 4. |
A polished diamond appears bright - |
| A. | due to total internal reflection |
| B. | because of its molecular structure |
| C. | due to absorption of light |
| D. | Because of some other inherent properties |
| Answer» B. because of its molecular structure | |
| 5. |
At the time of total solar eclipse, seeing the Sun with the naked eye causes great damage to the eyes, why - |
| A. | due to ultraviolet radiation |
| B. | because of rainbow light |
| C. | due to infrared light |
| D. | due to temperature |
| Answer» B. because of rainbow light | |
| 6. |
Myopia is corrected by - |
| A. | using a convex lens |
| B. | using a plane glass lens |
| C. | using a concave lens |
| D. | using a plane-concave lens |
| Answer» D. using a plane-concave lens | |
| 7. |
The nature of light rays is |
| A. | like a particle |
| B. | wavelike |
| C. | wave-like |
| D. | partly wave and partly particle |
| Answer» E. | |
| 8. |
The author of the book Periplus of the Erythrian Sea is- |
| A. | Pliny |
| B. | Ptolemy |
| C. | periplus |
| D. | is unknown |
| Answer» C. periplus | |
| 9. |
When an object is placed between two parallel mirrors, the number of images formed is |
| A. | six |
| B. | One |
| C. | Two |
| D. | eternal |
| Answer» E. | |
| 10. |
In which medium will the speed of light be minimum? |
| A. | water |
| B. | Vacuum |
| C. | Air |
| D. | glass |
| Answer» E. | |
| 11. |
Solar radiation is visible in which of the following wavelength range? |
| A. | 100-400 nm |
| B. | 400-700 nm |
| C. | 740-10000 nm |
| D. | none of the above |
| Answer» C. 740-10000 nm | |
| 12. |
The gas used in immersion tubes for lighting decoration and advertising is |
| A. | sulphur dioxide |
| B. | ammonia |
| C. | neon |
| D. | Carbon dioxide |
| Answer» D. Carbon dioxide | |
| 13. |
How does the signal flow in fiber optics communication? |
| A. | light wave |
| B. | micro wave |
| C. | electric wave |
| D. | Radio wave |
| Answer» B. micro wave | |
| 14. |
Raman effect is related to the rays of light which pass through |
| A. | only diamonds |
| B. | of prisms only |
| C. | of liquids only |
| D. | all transparent medium |
| Answer» E. | |
| 15. |
In which direction is the rainbow visible at 12 noon? |
| A. | in the past |
| B. | Can not see |
| C. | in the south |
| D. | in the west |
| Answer» C. in the south | |
| 16. |
An air bubble in water behaves like- |
| A. | concave mirror |
| B. | convex lens |
| C. | concave lens |
| D. | Convex mirror |
| Answer» D. Convex mirror | |
| 17. |
For reproduction of sound in a CD player is used- |
| A. | laser beam |
| B. | Titanium Needle |
| C. | barium titanic ceramic |
| D. | quarts crystal |
| Answer» B. Titanium Needle | |
| 18. |
Which of the following were the ports of the west coast during the Sangam period- 1- Puhar 2- Mushir 3- Tondi 4- Kodumandam |
| A. | 1, 2, 3 |
| B. | 2, 3, 4 |
| C. | 3, 4,1 |
| D. | 4, 1, 2 |
| Answer» C. 3, 4,1 | |
| 19. |
Insightly is based on which principle? |
| A. | scatter |
| B. | reflection |
| C. | refraction |
| D. | total internal reflection |
| Answer» E. | |
| 20. |
The lumen unit is - |
| A. | of flame flux |
| B. | of glitter |
| C. | of light intensity |
| D. | of light density |
| Answer» B. of glitter | |
| 21. |
Which of the following colors has the longest wavelength? |
| A. | Blue |
| B. | Yellow |
| C. | Green |
| D. | Red |
| Answer» E. | |
| 22. |
Red light is used in traffic signals because- |
| A. | It would be beautiful. |
| B. | It is visible even in poor light. |
| C. | It has the longest wavelength. |
| D. | None of the above reasons. |
| Answer» D. None of the above reasons. | |
| 23. |
The primary colors in the visual display unit are - |
| A. | red, yellow, blue |
| B. | red, green, blue |
| C. | red, white, yellow |
| D. | red, green, yellow |
| Answer» C. red, white, yellow | |
| 24. |
What would the sky look like to an astronaut in space? |
| A. | Black |
| B. | Red |
| C. | Violet |
| D. | Blue |
| Answer» B. Red | |
| 25. |
To obtain a magnified and virtual image of an object, it is used |
| A. | plane mirror |
| B. | concave lens |
| C. | Convex mirror |
| D. | concave mirror |
| Answer» E. | |
| 26. |
What is the phenomenon that makes antelope called? |
| A. | total internal reflection |
| B. | diffraction |
| C. | interference |
| D. | polarization |
| Answer» B. diffraction | |
| 27. |
The seat of the third great confluence of Tamils was located at - |
| A. | in Tanjore |
| B. | in madurai |
| C. | in Gangakode Cholapuram |
| D. | in Kanchi |
| Answer» C. in Gangakode Cholapuram | |
| 28. |
Why is the sky blue when viewed from the earth? |
| A. | reflection of sunlight |
| B. | scattering of longer wavelengths of sunlight in the atmosphere |
| C. | refraction of sunlight |
| D. | scattering of shorter wavelengths of sunlight in the atmosphere |
| Answer» E. | |
| 29. |
Which of the following will always form a smaller image of the object placed in front of it? |
| A. | convex lens |
| B. | Convex mirror |
| C. | concave mirror |
| D. | plane mirror |
| Answer» C. concave mirror | |
| 30. |
On which principle does the parishioner work? |
| A. | diffraction |
| B. | complete internal change |
| C. | refraction |
| D. | reflection |
| Answer» E. | |
| 31. |
The color of light is determined by |
| A. | intensely |
| B. | by wavelength |
| C. | with speed |
| D. | by dimension |
| Answer» C. with speed | |
| 32. |
The atomic clock is based on the transition of which of the following - |
| A. | magnesium |
| B. | cesium |
| C. | sodium |
| D. | aluminum |
| Answer» C. sodium | |
| 33. |
Which of the following image is always formed by a concave lens? |
| A. | real and straight |
| B. | virtual and erect |
| C. | real and underrated |
| D. | virtual and overhead |
| Answer» C. real and underrated | |
| 34. |
To see the full image of a person, the minimum height of a plane mirror should be - |
| A. | equal to the height of the person |
| B. | one-fourth of the person's height |
| C. | half of person's height |
| D. | none of the above |
| Answer» D. none of the above | |
| 35. |
Which color of light shows maximum deviation when passing through a prism? |
| A. | Purple |
| B. | Red |
| C. | Green |
| D. | white |
| Answer» B. Red | |
| 36. |
Sir CV For which experiment Raman was awarded the Nobel Prize? |
| A. | light reflection |
| B. | light dispersion |
| C. | light deflection |
| D. | light scattering |
| Answer» E. | |
| 37. |
Which one of the following was not a port of Sangam age? |
| A. | Corkai |
| B. | alangulam |
| C. | uraiyur |
| D. | Aricamedu |
| Answer» C. uraiyur | |
| 38. |
What do vehicles use to see the objects coming from behind? |
| A. | Convex mirror |
| B. | convex lens |
| C. | concave mirror |
| D. | concave lens |
| Answer» B. convex lens | |
| 39. |
Which of the following phenomena is helpful in deciding that light is a transverse wave? |
| A. | refraction |
| B. | polarization |
| C. | interference |
| D. | diffraction |
| Answer» C. interference | |
| 40. |
The Sangam in South India was represented by – |
| A. | Poet - Academy |
| B. | Sculptor - Category |
| C. | novelists group |
| D. | dramatist |
| Answer» B. Sculptor - Category | |
| 41. |
Where is the area called 'Jungle Mahal' located? |
| A. | West Bengal |
| B. | Jharkhand |
| C. | Assam |
| D. | A state in Eastern India |
| Answer» B. Jharkhand | |
| 42. |
What does the ozone layer protect us in the upper part of the atmosphere? |
| A. | from visible radiation |
| B. | from infrared rays |
| C. | from ultraviolet radiation |
| D. | from space rays |
| Answer» D. from space rays | |
| 43. |
Indra Dhanush is formed by which event? |
| A. | refraction and dispersion |
| B. | scattering and refraction |
| C. | diffraction and refraction |
| D. | refraction and reflection |
| Answer» E. | |
| 44. |
Which one of the following names is not commonly used for a saree? |
| A. | chanderi |
| B. | Moradabadi |
| C. | Banarasi |
| D. | Kanjivaram |
| Answer» C. Banarasi | |
| 45. |
'The Himalayan Mountaineering Institute' is situated in the following places, it is - |
| A. | Uttarkashi |
| B. | Dehradun |
| C. | Darjeeling |
| D. | shillong |
| Answer» D. shillong | |
| 46. |
The radius of curvature of a plane mirror is |
| A. | Zero |
| B. | One |
| C. | infinite |
| D. | between one and infinity |
| Answer» D. between one and infinity | |
| 47. |
Transition ions absorb light in |
| A. | infrared region |
| B. | microwave field |
| C. | visual field |
| D. | ultraviolet region |
| Answer» D. ultraviolet region | |
| 48. |
In order to compete with the 'Courier Service', the Indian Postal Department started the 'Fast Postal Service' - |
| A. | 1988 |
| B. | 1987 |
| C. | 1989 |
| D. | 1986 |
| Answer» E. | |
| 49. |
Which of the following can give both power and fertilizer? |
| A. | nuclear plant |
| B. | thermal plant |
| C. | biogas plant |
| D. | hydroelectric plant |
| Answer» D. hydroelectric plant | |
| 50. |
The concept popularized by the Indian Ministry of Tourism to encourage tourism in India is- |
| A. | God's Country |
| B. | pearl of the east |
| C. | Beautiful india |
| D. | incredible India |
| Answer» E. | |