Free gk questions Online Test - MeritNotes

No. of Questions :10

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1. The following is used in repairing watches

2. The refractive index of a medium depends upon

3. Which of the following are primary colours?

4. The line joining the centre of curvature of the two spherical surfaces is known as

5. The refracted ray just graces the surface of separation. In that case the angle of refraction is

6. When magenta, yellow and cyan are added, the colour obtained is

7. When a ray of light passes from a denser to rarer medium, the reflected ray is

8. In the human eye, the focal length of the lens is controlled by

9. The total internal reflection prisms are used in

10. This is used to see the lines of a person’s palm

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