Question:
How many colours are there in a rainbow?
How many colours are there in a rainbow?
Show Hint
A rainbow consists of seven colours: red, orange, yellow, green, blue, indigo, and violet.
Updated On: Oct 10, 2025
- 4
- 5
- 7
- 6
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Colours of the Rainbow.
A rainbow consists of seven distinct colours: red, orange, yellow, green, blue, indigo, and violet. These colours appear when sunlight is refracted, dispersed, and reflected by water droplets.
Step 2: Verifying the Options.
- Option (1): There are not 4 colours in a rainbow.
- Option (2): There are not 5 colours in a rainbow.
- Option (3): The correct number of colours in a rainbow is 7.
- Option (4): There are not 6 colours in a rainbow. Conclusion:
Therefore, the correct answer is (3) 7.
A rainbow consists of seven distinct colours: red, orange, yellow, green, blue, indigo, and violet. These colours appear when sunlight is refracted, dispersed, and reflected by water droplets.
Step 2: Verifying the Options.
- Option (1): There are not 4 colours in a rainbow.
- Option (2): There are not 5 colours in a rainbow.
- Option (3): The correct number of colours in a rainbow is 7.
- Option (4): There are not 6 colours in a rainbow. Conclusion:
Therefore, the correct answer is (3) 7.
Was this answer helpful?
0
0
Top Questions on Colour Theory
- Which effect does blue colour produce on eyes?
- UP Board X - 2025
- Chitrakala
- Colour Theory
- By mixing red and green, which colour is obtained?
- UP Board X - 2025
- Chitrakala
- Colour Theory
- How many primary colours are there?
- UP Board X - 2025
- Chitrakala
- Colour Theory
- Which is the secondary colour in the following?
- UP Board X - 2025
- Chitrakala
- Colour Theory
- How many neutral colours are there?
- UP Board X - 2025
- Chitrakala
- Colour Theory
View More Questions
Questions Asked in UP Board X exam
- The altitude of a right-angled triangle is 7 cm less than its base. If the hypotenuse is 13 cm, find the other two sides.
- UP Board X - 2025
- Right-Angled Triangles And Pythagoras Property
- If the sum of first 7 terms of an A.P. is 49 and the sum of first 17 terms is 289, find the sum of first $n$ terms.
- UP Board X - 2025
- Sum of First n Terms of an AP
Find the unknown frequency if 24 is the median of the following frequency distribution:
\[\begin{array}{|c|c|c|c|c|c|} \hline \text{Class-interval} & 0-10 & 10-20 & 20-30 & 30-40 & 40-50 \\ \hline \text{Frequency} & 5 & 25 & 25 & \text{$p$} & 7 \\ \hline \end{array}\]- UP Board X - 2025
- Median of Grouped Data
- If the roots of the equation $x^2+2(m-1)x+(m+5)=0$ are real and equal, find the value of $m$.
- UP Board X - 2025
- Quadratic Equations
Two concentric circles are of radii $8\ \text{cm}$ and $5\ \text{cm}$. Find the length of the chord of the larger circle which touches (is tangent to) the smaller circle.
- UP Board X - 2025
- Circles, Chords and Tangents
View More Questions