Light - Study Mode
[#226] Red is used as an emergency or danger signal as
Correct Answer
(B) wavelength is the longest
[#227] When light passes from one medium to another medium, which one of the following does not change?
Correct Answer
(D) Frequency
[#228] The formation of glittering colours in thin foam of soap is the result of which of the following phenomenon?
Correct Answer
(A) Total reflection and interference
[#229] The primary colours in photography are
Correct Answer
(C) red, blue, green
[#230] The speed of light is maximum in which of the following mediums?
Correct Answer
(B) vacuum