Asked: M.P. P.C.S. (Pre) 1997medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
निम्न में से किस रंग का सबसे लंबा तरंगदैर्घ्य है?
Which of the following colours has the longest wavelength?
SELECT CORRECT OPTION:
A
हरा
Green
B
पीला
Yellow
C
नीला
Blue
D
लाल
Red
Correct
Official Solution & Explanation:
Correct Answer: Option D(लाल)
दृश्य प्रकाश में लाल रंग का तरंगदैर्ध्य सबसे लंबा (लगभग 620 nm से 750 nm या $$7.5 \times 10^{-5}$$ सेमी.) होता है।
Red light has the longest wavelength among visible spectral colours, approximately 620 to 750 nm.
Subject: General Science•Topic: Light / Optics•Subtopic: Light / Optics
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