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- Question
A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?
Options- A. conduction and convection only
- B. conduction and radiation only
- C. convection and radiation only
- D. conduction, convection and radiation
- Correct Answer
- conduction, convection and radiation
ExplanationPart of the heat is conducted away by the metal table. Convection currents in air near the surface of the coffee are set up which accounts for some heat loss. Heat is also lost by radiation from the hot coffee to the surroundings. Most of the heat is lost by the last method.
- 1. Dr. Amiya Chakravarthy is known for his
Options- A. work in the Chipko movement
- B. composing music for Ray's films
- C. being literary Secretary to R. N. Tagore
- D. patenting a living organism Discuss
- 2. Raja Ravi Verma, was famous in which of the fields?
Options- A. Painting
- B. Politics
- C. Dance
- D. Music Discuss
- 3. SAARC was founded in
Options- A. New Delhi
- B. Geneva
- C. Dhaka
- D. Thimpu Discuss
- 4. Who is Tania Sachdev?
Options- A. Chess player
- B. Cricketer
- C. Actress
- D. Dancer Discuss
- 5. Yondieki who set up a new world record in 10,000 meters race, belongs to
Options- A. Australia
- B. Canada
- C. Kenya
- D. Mexico Discuss
- 6. Limba Ram is known for his outstanding performance in which of the following?
Options- A. Karate
- B. Judo
- C. Shooting
- D. Archery Discuss
- 7. How many runs did VVS Laxman score in his ODI debut?
Options- A. 100
- B. 1
- C. 99
- D. 0 Discuss
- 8. The smallest division of geological time scale is
Options- A. eon
- B. eras
- C. stage
- D. periods Discuss
- 9. The slow down slope movement of soil and sediment because of frost heaving and thawing is called
Options- A. solifluction
- B. gelifluction
- C. frost creep
- D. rockfall Discuss
- 10. Debenture holders of a company are its
Options- A. shareholders
- B. creditors
- C. debtors
- D. directors Discuss
More questions
Correct Answer: being literary Secretary to R. N. Tagore
Correct Answer: Painting
Correct Answer: Dhaka
Correct Answer: Chess player
Correct Answer: Kenya
Correct Answer: Archery
Correct Answer: 0
Explanation:
VVS Laxman was played his debut match against Zimbabwe on April 9, 1998 at Cuttack. Unfortunately he was out for leg before by Mbangwa for 0. Azharuddin and Jadeja both scored 100s and India won the match by 32 runs.
Correct Answer: stage
Correct Answer: frost creep
Correct Answer: creditors
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