Science questions for CDS/NDA exam. Attempt this quiz to increase your scores. The passing percentage is 70%. All the best.
#1. Critical angle of light passing from glass to water is minimum for:
Violet colour #2. Light from the sun reaches upon in nearly -
4 mins #3. The colour of stars depends upon their -
Distance from solar system #4. The head mirror used by doctors in E.N.T. is :
Convex #5. Optical Fibre works on the principal of:
Total internal reflection #6. Golden view of sea shell is due to:
Reflection #7. When viewed in white light , soap bubbles show colours of:
Dispersion #8. Production of which one of the following is a function of liver: #9. Which muscles in the skin contract to make the hair on our skin stand up straight (goosebumps)?
Arrector pili #10. Nuclear envelope is absent in:
None of these #11. Which of the following is considered as cell within cell:
Golgi Apparatus #12. Lung is covered by a membrane called?
Serosa #13. Collagen is--
None of these #14. Water attains maximum density at:
0 degree C
4 degree F
4 degree C #15. Which of the following alloy is used for making magnets in hearing aids:
Alinco #16. Which one of the following is not an allotrope of carbon: