Question
A rod of length of 616 cm and 35cm radius is melted and
converted into a sphere of radius 21cm, find how many such proper spheres can be made?Solution
Volume of rod = πr²h
Volume of sphere = πr³
π × 35 × 35 × 616 = n × 4/3 × π × 21 × 21 × 21
n = 61.11
No. of spheres = 61
A Double top cross refers to:
The measurement of drought is expressed inÂ
‘Pusa Nanha’ is the variety of:
If grain and straw yields are 4 and 6 t/ha, respectively, the harvest index will be
Which concept in agriculture involves growing two or more crops on the same land sequentially within a year to maximize productivity?
Sowing of a crop at an optimum date is an example forÂ
What is the name of a self-fruitful variety of Prunus domestica grown in India?
Which one of the following instrument is used to measure wind speed?
Which seed dormancy-breaking treatment involves exposure to low temperatures for weeks or months?
A situation when the rainfall deficiency is 25% or more of long term average, it is classified asÂ
Relevant for Exams:
