Question
In the context of renewable energy applications in
agriculture, solar dryers are often preferred for drying horticultural produce. What is the principal advantage of using an indirect type solar dryer over a direct type, especially for light-sensitive agricultural products?Solution
Indirect type solar dryers use a separate solar collector to heat air, which is then passed over the product in a drying chamber. This setup protects the product from direct sunlight, preventing photodegradation and preserving quality in light-sensitive products like herbs, flowers, and some fruits.
The volume of a hemisphere is 2425 (1/ 2) cm3. Find its diameter (Take p = 22/7)
The length and breadth of a rectangle are increased by 35% and 40% respectively. The increase in the area of the resulting rectangle will be:
The difference between the area of a circle and the area of the rectangle is 290.16 cm2. If the length of rectangle is 25% more and breadth i...
If the circumference of a circle is 154 cm then find the area of the circle?
- A square has a side length equal to the radius of a circle whose area is 201.96 m². Calculate the perimeter of the square.
Few people dive in a swimming pool of dimensions 25 × 15m. Due to this the water level rises by 4m. If one person displace 2 cubic metre of water. Find...

In a rectangular floor of length and breadth of 20 metres and 10 metres, respectively, square tiles each of 2 metre edge length are to be laid. If the c...
The sum of the perimeters of a square and a rectangle is 120 metres. If the sum of the length and breadth of the rectangle is 32 cm, then find the area ...
The circumference of two circles are 132 cm and 88 cm respectively. What is the difference between the area of the larger circle and the smaller circle?