Physics Light MCQ for SSC CHSL & Railway Exams
Physics Light MCQ for SSC CHSL & Railway Exams
| Question | Answer |
| 1.What is the nature of light | Both wave and p article nature |
| 2.The transverse nature of light is shown by | Polarization of light |
| 3. Longitudinal waves do not exhibit which phenomenon | Polarization |
| 4. Which types of waves are used in a night vision apparatus ? | Infra red waves |
| 5. Velocity of light is maximum in | Vaccum |
| 6.The focal length of a plane mirror is | infinity |
| 7.An object is placed between two parallel mirrors . The number of images formed | Infinity |
| 8. The nature of image formed by a plane mirror is | virtual |
| 9. A virtual image larger than the object can be formed by which mirror or lens | Concave mirror |
| 10.In which part of the eye lies the pigment, that decide the colour of the eyes of a person ? | Choroid |
| 11. The unit of luminous efficiency of an electric bulb is | Lumen /watt |
| 12.Candela is unit of | Luminous intensity |
| 13.Air bubble in water behaves as a | Divergent lens |
| 14.The head mirror used by E.N.T doctors is | Concave |
| 15.Astigmatism for a human eye can be removed by using | Cylindric al lens |
| 16.The primary colours in photography are | Red, blue , green |
| 17.Which light has the longest wavelength | Red light |
| 18. Which light has the highest energy ? | Blue light |
| 19.Critical angle of light passing from glass to water is minimum for which colour | Violet |
| 20.Diffusion of light in the atmosphere take place due to | Dust particles |
| 21.The phenomenon of splitting white light into seven colours is called | Dispersion |
| 22.Mirage is observed in a desert due to the phenomenon of | Total reflection |
| 23.When a monochromatic beam of light passes from a denser to a rarer medium then what is effect | Velocity increases |
| 24. In a compound microscope , the intermediate image is | Real, inver ted and magnified |
| 25.Image formed by a convex spherical mirror is | Virtual |
| 26. Which form a virtual and erect image for all position of the object | Concave lens & Convex mirror |
| 27.Image formed by a convex spherical mirror is | Virtual |
| 28. Total internal reflection can occur when light tends to pass from | A denser to a rare medium |
| 29.Mid point between lens surface and principle axis is termed as | optical center |
| 30.A converging mirror is known as ________. concave mirror |