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- Question
Consider the following statements : 1. There is no net moment on a body which is in equilibrium. 2. The momentum of a body is always conserved. 3. The kinetic energy of an object is always conserved. Which of the statements given above is/are correct?
Options- A. 1, 2 and 3
- B. 2 and 3 only
- C. 1 and 2 only
- D. 1 only
- Correct Answer
- 1 and 2 only
ExplanationThere are two conditions that must be met for an object to be in equilibrium. The first condition is that the net force on the object must be zero for the object to be in equilibrium. If net force is zero, then net force along any direction is zero.
Kinetic energy (KE) is the energy of motion, and kinetic energy is not always conserved in a collision
Energy and momentum are always conserved.
- 1. In the United States the television broadcast standard is...?
Options- A. PAL
- B. NTSC
- C. SECAM
- D. RGB Discuss
- 2. Where is the headquarters of Intel located?
Options- A. Redmond, Washington
- B. Tucson, Arizona
- C. Santa Clara, California
- D. Richmond, Virginia Discuss
- 3. Where was the yo-yo invented?
Options- A. France
- B. United States
- C. Philippines
- D. England Discuss
- 4. Which of the following is concerned with the study of characteristics, origin and development of land forms?
Options- A. Ecology
- B. Geography
- C. Geology
- D. Geomorphology Discuss
- 5. Who was the first Indian batsman to hit a century on Test debut against England at England's home?
Options- A. Sachin Tendulkar
- B. Abbas Ali Baig
- C. Kapil Dev
- D. Wassim Jaffer Discuss
- 6. When did Sachin Tendulkar make his Test debut?
Options- A. 1986
- B. 1991
- C. 1990
- D. 1989 Discuss
- 7. The first electric train of India 'Deccan Queen' was run between
Options- A. Howrah and Delhi
- B. Bombay and Surat
- C. Kalyan and Pune
- D. New Delhi and Madras Discuss
- 8. Electric current is measure by
Options- A. commutator
- B. anemometer
- C. ammeter
- D. voltmeter Discuss
- 9. Who developed the idea of Crop Rotation?
Options- A. Potato Peterson
- B. Turnip Townsend
- C. Cabbage Carlson
- D. Swede Svenson Discuss
- 10. The major geological events of the Palaeozoic era include
Options- A. Caledonian mountain rise, life comes ashore
- B. Appalachians and Central European mountains come up
- C. both (a) and (b)
- D. None of the above Discuss
More questions
Correct Answer: NTSC
Explanation:
PAL and SECAM are standards used in other countries. RGB stands for red, green, and blue - the colors of light used to create an image in a color tv set and is often used as a format name for computer monitors.
Correct Answer: Santa Clara, California
Correct Answer: Philippines
Explanation:
The yo-yo was first used by hunters as weapons. They were wooden disks on strings. In the 1920s, a man from the U.S. named Donald Duncan made the yo-yo into a toy after he visited the Philippines.
Correct Answer: Geomorphology
Correct Answer: Abbas Ali Baig
Explanation:
He had scored 12,367 runs in 235 matches in First Class Cricket with his highest being 224 not out.
Correct Answer: 1989
Explanation:
It was against Pakistan - the now famous saying -" go home and drink milk" was made against him!
Correct Answer: Kalyan and Pune
Correct Answer: ammeter
Correct Answer: Turnip Townsend
Explanation:
Viscount Charles 'Turnip' Townsend developed this revolutionary concept.
Correct Answer: both (a) and (b)
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