Is it possible to see primary and secondary rainbow simultaneously? Under what conditions?
Answered Feb 05, 2023
Yes, it is possible to see primary and secondary rainbows simultaneously. This can occur when the centres of both the rainbows coincide.
Correct Answer - 1 `sin^2x+cos^2y=(3a)/2 ...(i)` `andcos^2x+sin^2y =a^2/2 ...(ii)` Adding (i) and (ii), we get `2=(3a)/2 +a^2/2` `or a^2+3a-4=0` `or (a+4)(a-1)=0` `:. A=-4("rehected"),a=1`
Correct Answer - Concave lens, power =`-2D`
Correct Answer - `12.5`cm
Correct Answer - `10 A, 100A`
Correct Answer - `0`
Answer is : (c) Tertiary
Answer is : (b) Secondary
A rainbow can be observed when there is a light shower with relatively large raindrop occurring during morning or evening time with enough sunlight around.
Correct option is D) 0° to 42°
Correct option is B) i and iv
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