Questions

Air Pressure can be defined as the pressure of air in the earth's atmosphere. It reaches a maximum of about 100,000 Pa near sea level and decreases as altitude increases.

The barometer is an instrument which is used for measuring Air pressure.

Physics instruments and their uses:

Barkometer  - - - Tanning liquors used in tanning leather

Bolometer  - - - Electromagnetic radiation

Spectrometer - - -  Properties of light.

The Primary Colours are Blue, Red and Green. By mixing all these three primary colours we get White colour. 

The Secondary Colours are - Yellow, Magenta and Cyan.

Dull means not sharp, not shining, not bright, ...

Hence, the given words are all that means the opposite of dull.

The Tripitaka was Written in Third Century bce(beginning of the common era).

The Tripitaka (called Tipitaka in Pali) is the earliest collection of buddhist writings. Initially, they were composed orally.

Sir Benegal Narsing Rao (B N Rau), was the Constitutional Advisor to the Constituent Assembly. He was an Indian civil servant, jurist, diplomat and statesman known for his key role in drafting the Constitution of India.

He was also India's representative to the United Nations Security Council from 1950 to 1952.