Results
#1. Human eye is most sensitive to visible light of wavelength :
#2. Velocity of light is maximum in :
#3. A light year is :
#4. A laser is a source of :
#5. A rear-view mirror of a car is :
#6. An air bubble in water behaves as :
#7. Rainbow is seen due to :
#8. A convex lens is used to correct :
#9. Objects are visible in light due to :
#10. Fingerprints on paper are identified by sprinkling fluorescent powder on it and observing it under :
#11. Lightning rods are made of :
#12. In an ordinary dry cell, the electrolyte is :
#13. Power is transmitted from a powerhouse on high voltage a.c. because :
#14. Best material for permanent magnet is :
#15. Frequency of ac mains in India is :
#16. Medium frequency band stands for :
#17. Approximate height of ozone layer above the ground is :
#18. Waves used for telecommunication are :
#19. The size of an atom is of the order of :
#20. The process of superimposing signal frequency on the carrier wave is known as :
#21. The wavelength of X-rays is of the order of :
#22. The energy of a photon of wavelength λ is :
#23. One cannot see through fog because :
#24. Energy in a current carrying coil is stored in the form of :
#25. The twinkling of stars is due to :
