Question
Which instrument can be used to detect water
adulteration in milk?Solution
A refractometer measures the refractive index of a substance, and in the case of milk adulteration with water, the refractive index changes due to the difference in composition between milk and water. This alteration can be identified using a refractometer, making it a useful tool for detecting water adulteration in milk.
The dimensions of a rectangular park are 54 meters in length and 'b' meters in breadth. Given that the perimeter of the park is 168 meters, determine th...
The perimeter of a floor a room is 36m. What is the area of four walls of the room, if its height is 6m?
- Four cubes, each with a side length of 8 cm, are connected in a straight line to form a cuboid. Calculate the total surface area of the resulting cuboid.
Find the area of a rhombus (in cm2) whose side is 13 cm and the smaller diagonal is 11 cm?
The volume of cone is 1900.8 cm3. If its height is 1.4 cm then find the radius of the cone.
A hemisphere of radius 10 cm is melted and recast into the shape of a cone with a base diameter of 10 cm. Find the height of the cone.
Find the number of common tangents, if r1 + r2 = C1C2 .(With usual notations, r1 & r2 and C1 & C2 are the radii and centres of the two circles.)
The perimeter of a rectangle is 68 cm more than its length. If the length and breadth of the rectangle are in the ratio 7:5, respectively, then find the...
If the numerical value of twice the curved surface area of a right circular cylinder is equal to the numerical value of its volume, then what is the num...
The sides of a triangle are in the ratio 5:7:12, and its perimeter is 144 cm. What is the difference in length between the longest and the shortest side?
Relevant for Exams:
