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- Question
What was the active medium used in the first working laser ever constructed?
Options- A. A diamond block
- B. Helium-neon gas
- C. A ruby rod
- D. Carbon dioxide gas
- Correct Answer
- A ruby rod
ExplanationTheodore Maiman built the first working laser using a ruby rod while working at Hughes Research Laboratories in Malibu, California. It lased for the first time on May 16, 1960. - 1. The term samanta, meaning a feudatory from the sixth century AD, originally meant a
Options- A. slave
- B. cultivator
- C. neighbor
- D. foreigner Discuss
- 2. The HBJ Upgradation project, upgraded the capacity of HBJ pipeline from 18.2 MM SC MD to
Options- A. 20 MM SC MD
- B. 33.4 MM SC MD
- C. 22.3 MM SC MD
- D. 29.6 MM SC MD Discuss
- 3. Former Australian captain Allan Border was sometimes known as "Captain Grumpy". What was his other nickname?
Options- A. Abe
- B. Captain Junior
- C. AB
- D. Groucho Discuss
- 4. The largest gold producing country in the world(in 2006) is
Options- A. China
- B. Canada
- C. South Africa
- D. USA Discuss
- 5. The first recipient of Nehru Award was
Options- A. Martin Luther King
- B. Khan Abdul Ghaffar Khan
- C. Mother Teresa
- D. U Thant Discuss
- 6. David Copperfield is the name of
Options- A. novel
- B. famous actor
- C. poem
- D. writer Discuss
- 7. The sulphites are a mineral group that contain one or more metallic elements in combination with the sulphate compound ____
Options- A. SO3
- B. SO2
- C. SO4
- D. SO Discuss
- 8. The short term variations of the atmosphere, ranging from minutes to months are called
Options- A. climate
- B. weather
- C. temperature
- D. humidity Discuss
- 9. Which is the best search tool for finding Web sites that have been handpicked and recommended by someone else?
Options- A. Subject directories
- B. Search engines
- C. Meta-search engines
- D. Discussion groups Discuss
- 10. The Yarlung Zangbo river, in India, is known as
Options- A. Ganga
- B. Indus
- C. Brahmaputra
- D. Mahanadi Discuss
More questions
Correct Answer: neighbor
Correct Answer: 33.4 MM SC MD
Correct Answer: AB
Explanation:
Captain Grumpy was more of a media invention.
Correct Answer: South Africa
Explanation:
http://en.wikipedia.org/wiki/List_of_countries_by_gold_production
Correct Answer: U Thant
Correct Answer: novel
Correct Answer: SO4
Correct Answer: weather
Correct Answer: Subject directories
Explanation:
Subject directories tend to house fewer?sometimes more relevant?sites than those found through search engines. Sites in a subject directory often have been handpicked by editorial teams or specialists in a particular field.
Correct Answer: Brahmaputra
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