Light - Study Mode
[#406] Optical fibres are based on the phenomenon of
Correct Answer
(D) total internal reflection
[#407] Focal length of concave lens . . . . . . . . it occurs
Correct Answer
(B) negative
[#408] Danger signals are generally red as light
Correct Answer
(B) undergoes least deviation
[#409] An air bubble inside water behaves as a
Correct Answer
(C) Divergent lens
[#410] Total internal reflection can take place when light travels from
Correct Answer
(A) Diamond to glass