The telephone was invented by Alexander Graham Bell. The correct answer is (A) Alexander Graham Bell. Bell is widely recognized for his pioneering work in the development of the telephone, and he received the first US patent for the invention of the telephone in 1876.

In 1831, electricity became viable for use in technology when Michael Faraday created the electric dynamo. The correct answer is (C) Michael Faraday. 

Faraday's work on electromagnetic induction laid the foundation for the development of electric generators and dynamos, which played a crucial role in the generation of electric power.

CARTOSAT-1 was India’s first cartography (mapping) satellite. It was launched from the SHAR Centre in Sriharikota in May 2005 by the Indian Space Research Organisation (ISRO).

The father of the Indian Space Programme is often considered to be:

(C) Vikram Sarabhai

Dr. Vikram Sarabhai, an eminent scientist, visionary, and the founder of the Indian Space Research Organisation (ISRO), is widely regarded as the father of the Indian Space Programme. He played a pivotal role in establishing and nurturing India's space capabilities. Dr. Sarabhai was instrumental in the launch of India's first satellite, Aryabhata, in 1975, marking a significant milestone in the country's space exploration journey. His vision and leadership laid the foundation for the development of ISRO and the growth of India's space capabilities, making space exploration an integral part of the country's scientific and technological advancements.

The inventor of FM (Frequency Modulation) radio is Edwin Howard Armstrong. The correct answer is (A) Edwin Howard Armstrong. Armstrong made significant contributions to radio technology, and he is credited with inventing FM radio in the 1930s.

The supercomputer 'PARAM' was developed by C-DAC (Centre for Development of Advanced Computing), so the correct answer is:

(D) C-DAC

The third-generation anti-tank missile successfully test-fired by DRDO (Defence Research and Development Organisation) in Rajasthan is named:Nag

The invention of the railway engine is credited to George Stephenson. The correct answer is (D) George Stephenson. George Stephenson, an English engineer, is known for developing the first practical steam locomotive, named "The Rocket," which played a crucial role in the early development of railways.