Questions

The lens which have atleast one inward curved surface is a concave lens. Concave ens is a diverging lens as it spreads out light rays that have been refracted through it.

A concave lens is thinner at its centre than at its edges.

Aestivation is summer sleep. Many organisms like the snails do not find it comfortable in summer. They withdraw and lead a life with reduced BMR (basic Metabolic Rate) in a state of  dormancy.

52 C in a P represents 52 Cards in a Pack.

Similar to 

12 S of the Z 

5 C in an OF

GDP full form is Gross domestic product.

It is a measurement of a nation’s overall economic activity. 

GDP is the monetary value of all the finished goods and services produced within a country's borders in a specific time period.

In India, the Universal Adult Franchise was introduced only in the post-independence period during the first general elections to the Lok Sabha and the State Assemblies.

Under the Cabinet Mission Plan of 1946, elections were held for the first time for the Constituent Assembly.

Constituent Assembly members were elected indirectly by members of the newly elected provincial assemblies, and initially included representatives for those provinces that formed part of Pakistan (some of which are now in Bangladesh).