Tungsten is used for the manufacture of the filament of an electric bulb, because –
Tungsten is used because it has the highest melting point of all the metallic elements. It melts at 3410 degrees Celsius. When current passes through the filament it heats it up. When the filament reaches a certain temperature it starts to give off light, that's how we get a light bulb. The first successful light bulb filaments were made of carbon (from carbonized paper or bamboo).
Which of the following countries have the highest organic farmers in the world?
The concept of Five Year Plans in India was introduced by
Which is not a method of food preservation
Which crop is called 'camel crop"?
Which type of lifecycle is observed in thrips?
Which of the following are critical elements
Which of the following is a method of controlling plant diseases that involves the use of beneficial microbes?
Commercial hybrid rice seed production in India is mostly done through
Canopy temperature can be used as a potential indicator for scheduling irrigation to crops. It can be measured by which of the following instrument?
4. Symptoms appear as cup shaped, distorted and abnormally dark green leaves. In wheat and barley young leaves appear thread like .Identify the r...
