Length of smaller train = 150 metre Speed of smaller train = 32.4 × (5/18) = 9 m/s Length of bigger train = 218 metres Speed of bigger train = 90 × (5/18) = 25 m/s Since, the smaller train is completely obscured by larger train, therefore, extra length of larger train = 218 – 150 = 68 metres Relative speed of trains ‘A’ and ‘B ‘= 9 + 25 = 34 m/s (Since, the trains are running in opposite direction) Required time = 68/34 = 2 second
Biological control of apple woolly aphid is _____
Green manure crop suitable for reclamation of salt affected soils is:
What is the process involved in aminization during Nitrogen mineralization?
Photoperiodism is a
World food safety day celebrated on?
Cotton is derived from which part of the cotton plant?
Which of the following instrument is used for measurement of specific heat?
Soil physical property which cannot be changed of altered is:
Leghaemoglobin is a pigment present in:
The concept of Krishi Vigyan Kendra was launched on the recommendation of which of the following committee?