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.

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.

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

Similar to 

12 S of the Z 

5 C in an OF

Verses ascribed to Kabir have been compiled in three distinct but overlapping traditions. The Kabir Bijak is preserved by the Kabirpanth (the path or sect of Kabir) in Varanasi and elsewhere in Uttar Pradesh, the Kabir Granthavali is associated with the Dadupanth in Rajasthan, and many of his compositions are found in the Adi Granth Sahib.

Bijak is the best known of the compilations of the Kabir, and as such is the holy scripture for followers of the Kabirpanthi religion. The Bijak, an anthology of Kabir’s verses compiled in Eastern Uttar Pradesh and/or Bihar, is one of Kabir’s most influential works.In the case of the Guru Granth Sahib, Kabir’s poems were collected to be sung and are organized in ragas.