Optical fibre works on the
principle of refraction
total internal reflection
scattering
interference
Additional Questions
|
Light from the star, Alpha Centauri, which is nearest to the earth after the sun, reaches the earth in |
Answer |
|
Supersonic plane fly with the speed |
Answer |
|
Mach number is used in connection with the speed of |
Answer |
|
On a stationary sail boat, air is blown from a fan attached to the boat. The boat |
Answer |
|
Rainbow is due to |
Answer |
|
Stars which appear single to the naked eye but are double when seen through a telescope are |
Answer |
|
ML2T-2 is the dimensional formula for |
Answer |
|
Solar eclipse will take place when |
Answer |
|
Isotopes of an element contain |
Answer |
|
One watt-hour is equivalent to |
Answer |