Explain the nature of Post-Traumatic Stress Disorder (PTSD).
Points:
(i) Meaning
(ii) Shock stage
(iii) Suggestible stage
(iv) Recovery stage
Post-Traumatic Stress Disorder (PTSD) is a mental health disorder that develops after experiencing or witnessing a traumatic event. It impacts emotions, cognition, and daily functioning.
Shock stage: This initial phase involves numbness, disbelief, and emotional detachment from reality.
Suggestible stage: During this stage, individuals experience heightened anxiety, flashbacks, and intrusive thoughts related to the trauma. They may become overly sensitive to triggers.
Recovery stage: Through therapy, support, and effective coping strategies, individuals slowly regain emotional balance and learn to process the trauma in a healthier manner. PTSD is typically treated with cognitive-behavioral therapy (CBT), counseling, and medication.
The slope of the tangent to the curve \( x = \sin\theta \) and \( y = \cos 2\theta \) at \( \theta = \frac{\pi}{6} \) is ___________.
Explain the construction of a spherical wavefront by using Huygens' principle.
The perpendicular distance of the plane \( r \cdot (3\hat{i} + 4\hat{j} + 12\hat{k}) = 78 \) from the origin is __________.