Question
A plane electromagnetic wave travels in vacuum along
z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 50 MHz, what is its wavelength?Solution
Aluminium Phosphide is used to control stored grain pest _____
‘Centering’. The first cut on a young tea plant is at which of the following:Â
Water is drawn upwards from the water table in a continuous network of pores. This upward movement of water occurs only in saturated soils is called
What is the major limitation of privatized extension services?
The land-related reform enacted to protect tenants from eviction and secure their right to cultivate the land is known as:
Triazines and triazinones inhibit ______
The critical limit for NO3-N (mg/litre) in drinking water (as per WHO standard is:
Khaira disease of rice can be controlled by spraying of ____________ .
Bengal famine in 1943 was caused due to which disease?
The scientific name of the Italian honey bee is