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- Question
The optical phenomenon that is primarily responsible for the observation of rainbow on a rainy day is
Options- A. diffraction
- B. interference
- C. dispersion
- D. reflection
- Correct Answer
- dispersion
ExplanationA rainbow is a natural spectrum appearing in the sky after a rain shower. It is caused by dispersion of sunlight by tiny water droplets, present in the atmosphere. A rainbow is always formed in a direction opposite to that of the Sun. The water droplets act like small prisms. They refract and disperse the incident sunlight, then reflect it internally, and finally refract it again when it comes out of the raindrops.
- 1. The percentage of India's total population employed in agriculture is nearly
Options- A. 40%
- B. 50%
- C. 60%
- D. 70% Discuss
- 2. The periods of different eras are further divided into
Options- A. eons
- B. epochs
- C. stages
- D. Any of the above Discuss
- 3. Stars twinkle because
Options- A. the intensity of light emitted by them changes with time
- B. the distance of the stars from the earth changes with time
- C. the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time
- D. the light from the star is scattered by the dust particles and air molecules in the earth's atmosphere Discuss
- 4. Who headed the committee on 'computerisation' in Indian Banks(1988)?
Options- A. C. Rangarajan
- B. R.N. Malhotra
- C. S. Venkitramanan
- D. M.Narasimhan Discuss
- 5. On what date was the debut of the first IBM Personal Computer?
Options- A. August 12, 1981
- B. January 21 1979
- C. August 21, 1980
- D. January 12, 1982 Discuss
- 6. How many ODI matches had Farokh Engineer played throughout his career?
Options- A. 5
- B. 10
- C. 15
- D. 9 Discuss
- 7. Who was the first Indian to go into space?
Options- A. Ravi Malhotra
- B. Satish Dawan
- C. Kalpana Chawla
- D. Rakesh Sharma Discuss
- 8. Who was named India's Cricketer of the Century by Wisden?
Options- A. Anil Kumble
- B. Sachin Tendulkar
- C. Kapil Dev
- D. Sunil Gavaskar Discuss
- 9. Which Indian batsman was the first to hit 44 fours in a test match innings?
Options- A. Tendulkar
- B. Gavaskar
- C. Ganguly
- D. Laxman Discuss
- 10. What will a UPS be used for in a building?
Options- A. To provide power to essential equipment
- B. To monitor building electricity use
- C. To carry messages between departments
- D. To control lighting and power systems Discuss
More questions
Correct Answer: 70%
Correct Answer: stages
Correct Answer: the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time
Correct Answer: C. Rangarajan
Correct Answer: August 12, 1981
Explanation:
Before IBM created its personal computer, two types of computer systems, Apple II and CP-M, dominated the microcomputer world. Neither of these systems were PC compatible, or Mac-compatible (the two primary standards in place today). The original IBM PC became a new standard in the microcomputer industry. Since then, hundreds of millions of PC-compatible systems have been sold, as the original PC grew into a large family of computers and peripherals. More software has been written for this computer family than for any other system on the market.
Correct Answer: 5
Explanation:
He played 5 ODI matches with his highest being 54 not out.
Correct Answer: Rakesh Sharma
Correct Answer: Kapil Dev
Explanation:
Well life can churn some amazing ironies - some years ago, Kapil was charged for MATCH -FIXING ! (and exonerated).
Correct Answer: Laxman
Explanation:
The innings at Kolkata in 2000-01 was one of the magnificent innings ever played.
Correct Answer: To provide power to essential equipment
Explanation:
UPS stands for Uninterruptible Power Supply. Examples of equipment that may require a UPS supply are computers, fire detection systems, hospital operating theatre equipment and escape route lighting.
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