Free tnpsc model questions Online Test - MeritNotes

No. of Questions :10

Remaining Time :

1. A red flower kept in green light will appear

2. The head mirror used by E.N.T. doctors is

3. Optical fibres are based on

4. A laser beam is always

5. Angular separation between two colours of the spectrum depends upon

6. For an astronaut in a space ship, the sky appears

7. Total internal reflection can take place when light travels from

8. Which mirror is to be used to obtain a parallel beam of light from a small lamp?

9. The refractive index of a given piece of transparent quartz is greatest for

10. The chemical part of the dye that absorbs light and produces colour is called

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