Mobile phones, laptops, and televisions are all electronic devices that are used for communication, entertainment, or information purposes.
On the other hand, a transformer is an electrical device used to transfer electrical energy between circuits, and it doesn’t belong to the same category as the other items.
Thus, the correct answer is (a) 1, 2 and 3, as these are all electronic devices used by consumers for different purposes.
The diagram below shows a river system consisting of 7 segments, marked P, Q, R, S, T, U, and V. It splits the land into 5 zones, marked Z1, Z2, Z3, Z4, and Z5. We need to connect these zones using the least number of bridges. Out of the following options, which one is correct? Note:
In the given figure, PQRS is a square of side 2 cm, and PLMN is a rectangle. The corner \( L \) of the rectangle is on the side \( QR \). Side \( MN \) of the rectangle passes through the corner \( S \) of the square. What is the area (in cm\(^2\)) of the rectangle PLMN? Note: