Questions

Which of the following scientists had done some calculations for the fifth state of matter?

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The _____ of energy in India are met from both commercial and non commercial sources. The most _____ sources of energy today are coal and natural gas, hydro
electricity and nuclear power. On the other hand, firewood, cow-dung cakes and vegetable waste etc. _____ non commercial forms of energy. While non commercial
forms of energy _____ demand, coal is the _____ source of commercial energy in India.

coal is the _____ source of commercial energy in India. 

If quantity of good X demanded increases from 4000 units to 5000 units when price of good Y increases from Rs 75 to Rs 90, find Arc Cross elasticity of demand?

In India, which of the following is regulated by the Forward Markets Commission?

In ____________, the short run equilibrium results in quantity produced being lesser and prices being higher compared to perfect competition.

In a market system, the central problems regarding how much and what to produce are solved through the coordination of economic activities brought about by ________ signals.

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.

P: This is despite the fact that there is a rampant migration of rural families to urban centres.
Q: Generally the gains of being a unit of the urban population are less than the disadvantages and risks that are inbuilt in the urban life.
R: Rural population still dominates the urban population as far as the number is considered.
S: India is a country of villages.

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.