Questions

Dr. B.R. Ambedkar received Bharat Ratna in the year 1990.

The ryots came to see the moneylender as devious and deceitful. They complained of moneylenders manipulating laws and forging accounts. In 1859 the British passed a Limitation Law that stated that the loan bonds signed between moneylenders and ryots would have validity for only three years. This law was meant to check the accumulation of interest over time. The moneylender, however, turned the law around, forcing the ryot to sign a new bond every three years.

A battle was fought between Iran under the king Darius and the state of Greece in 490 B.C at Marathon near Athens. This battle is known as the 'Battle of Marathon' in World History.

According to Rayleigh's law, the intensity of scattered light varies inversely as the fourth power of its wavelength. Sunlight consists of seven colours. Of these, red has the maximum wavelength. During sunrise and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon.Therefore, light other than red is mostly scattered away. Most of the red light, which is the least scattered, enters our eyes. Hence, the sun and the sky appear red.

Deficit spending means spending more than the income getting. A government need to take debts for deficit spending.

Heat energy can be transferred by three major methods. They are 

1. Conduction,

2. Convection and

3. Radiation.

Conduction is the movement of heat through a substance by the collision of molecules

Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy.

Radiation is the transfer of energy by means of photons in electromagnetic waves governed by the same laws. It occurs through a vacuum or any transparent medium.

Dr. B. R. Ambedkar attended all the three-round table conferences.