Step 1: Colour Psychology Basics
In psychology and visual arts, colours are associated with different emotions. These associations are based on cultural as well as psychological interpretations.
Step 2: Emotional Interpretation of Orange
Orange is a warm, vibrant colour often associated with:
- Joy
- Energy
- Enthusiasm
- Warmth
- Happiness
It combines the energy of red and the cheerfulness of yellow. Thus, orange tends to represent uplifting and cheerful feelings.
Step 3: Eliminating Wrong Choices
- (A) Knowledge: Often linked with blue
- (B) Sadness: Usually associated with blue or grey
- (D) Anger: Represented by red
Therefore, the correct and most psychologically accepted association for orange is happiness.
\[
\boxed{\text{Happiness}}
\]
Find the unknown frequency if 24 is the median of the following frequency distribution:
\[\begin{array}{|c|c|c|c|c|c|} \hline \text{Class-interval} & 0-10 & 10-20 & 20-30 & 30-40 & 40-50 \\ \hline \text{Frequency} & 5 & 25 & 25 & \text{$p$} & 7 \\ \hline \end{array}\]
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.