A traveller may sink in love with his travel memoirs.
Traveling allows one to relive experiences and build a deep connection with their past journeys, making them unforgettable.
True, As mentioned in the passage, the author states how he was deeply engrossed in his travel memories, revisiting them through photographs and diaries, which indicates a deep emotional attachment, almost like being in love with the experience.
Explain the construction of a spherical wavefront by using Huygens' principle.
The slope of the tangent to the curve \( x = \sin\theta \) and \( y = \cos 2\theta \) at \( \theta = \frac{\pi}{6} \) is ___________.