Alexander Fleming discovered _____.

1. 1. Telephone
   2. Penicillin
   3. Streptomycin
   4. X-Ray

Neutron was discovered by _____.

1. 1. Chadwick
   2. Moseley
   3. Rutherford
   4. Thomson

Who among the following described protoplasm as the physical basis of life?

1. 1. J.C. Bose
   2. Leeuwenhoek
   3. T.H. Huxley
   4. Rudolf Virchow

Though the first photocopies was made in 1938, its commercial production started only in 1960s. Who invented it?

1. 1. Georg Biro
   2. Arthur Korn
   3. Philo Farnsworth
   4. Chester Carlson

Sony’s ch-chairman Akio Morita wanted to listen to music while he played golf. So, Sony developed:

1. 1. Discman
   2. Walkman
   3. Two-in-ones
   4. Portable Stereo System

Which two companies developed compact disc independently in 1979?

1. 1. Sony and Matsuhisa
   2. Philips and General Electric
   3. Sony and Philips
   4. Mitsubishi and Sony

The invention of which product by Robert Noyce in 1959 made the electronic equipments shrink in size?

1. 1. Integrated circuit
   2. Silicon
   3. Transistors
   4. Vacuum tubes

Though Mitsubishi built the VCR market from 1969 onwards with its VHS standard, it was actually some other company which made the first video-recorder. Name it.

1. 1. Sanyo
   2. Sony
   3. Ampex
   4. General Electric

What product invented by William Shockley, John Bardeen and Walter Brattain at Bell Labs in 1947 revolutionized the electronics industry?

1. 1. Silicon
   2. Integrated circuit
   3. Vacuum tube
   4. Transistor

In which year did Mikhail Kalashnikov develop AK-47?

1. 1. 1936
   2. 1947
   3. 1960
   4. 1971