Identify and rewrite the correct ‘indirect narration’ from the following options.
Avneesh said, Sanchit, what are you doing in the garden at this time?"
In indirect speech, "what are you doing" is rephrased to "wanted to know from Sanchit his cause of being there". This is a transformation of the direct speech into a more formal indirect narration, which corresponds with option , as it captures the essence of the original inquiry about the purpose of Sanchit's presence.
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 __________.
Derive an expression for maximum speed of a vehicle moving along a horizontal circular track.