In fiber-optic communication, the signal travels in the form of-
In fiber-optic communication, the signal travels in the form of-
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Optical fibre works on the principle of :
Optical fibre works on the principle of :
The diamond appears lustrous because of :
The diamond appears lustrous because of :
A cut diamond shines brilliantly due to
A cut diamond shines brilliantly due to
Total internal reflection can take place when light travels from
Total internal reflection can take place when light travels from
The formation of glittering colours in thin foam of soap is the result of which of the following phenomenon...
The formation of glittering colours in thin foam of soap is the result of which of the following phenomenon...
When a ray of light travels from a denser medium to a rarer medium then
When a ray of light travels from a denser medium to a rarer medium then
When light waves pass from air to glass the variable affected are –
When light waves pass from air to glass the variable affected are –
Which of the following does not change when light travels from one medium to another?
Which of the following does not change when light travels from one medium to another?
Which of the following has the highest velocity?
Which of the following has the highest velocity?