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- Question
Which is the strongest force in the universe?
- Correct Answer
- Nuclear Force
- 1. Learned indian classical vocalists do not like the accompaniment of a harmonium because
Options- A. tempered scale is used in the harmonium
- B. diatonic scale is used in the harmonium
- C. notes of the harmonium are too shrill
- D. intensity of the notes of the harmonium is too large Discuss
- 2. Which one of the following groups have quantities that do not have the same dimensions
Options- A. pressure, stress
- B. velocity, speed
- C. force, impulse
- D. work, energy Discuss
- 3. Which of the following physical quantities have the same dimensions
Options- A. momentum and impulse
- B. power and young modulus
- C. Energy and angular Momentum
- D. force constant and moment of inertia Discuss
- 4. Curie is the unit of
Options- A. temparature
- B. radio activity
- C. heat
- D. energy Discuss
- 5. Number of basic SI unit is
Options- A. 4
- B. 7
- C. 6
- D. 5 Discuss
- 6. Which is the liquid that shows Capillary fall? Discuss
- 7. A car parked in the sun with its windows closed gets terribly hot inside. This is due to
Options- A. the heat emitted by the engine
- B. the greenhouse effect
- C. the good conducting power of the metal body
- D. the double layered wind shield Discuss
- 8. During thunderstorm you are travelling in a car. To protect yourself from the lightning you will have to
Options- A. remain in the car
- B. get out of the car and lie flat in the ground
- C. abandon the car and take shelter under a nearby tree
- D. touch the nearest electric pole Discuss
- 9. An atom bomb based upon the principal of ________
Options- A. Nuclear fission
- B. Nuclear fussion
- C. Controlled chain reaction
- D. None of these Discuss
- 10. Lightning heats the surrounding air to
Options- A. 300 deg Cent
- B. 3000 deg Cent
- C. 30000 deg Cent
- D. 300000 deg Cent Discuss
Physics problems
Search Results
Correct Answer: tempered scale is used in the harmonium
Correct Answer: force, impulse
Correct Answer: momentum and impulse
Correct Answer: radio activity
Correct Answer: 7
Correct Answer: Mercury
Correct Answer: the greenhouse effect
Explanation:
The green house effect. The waves of smaller wavelength from the sun enter inside the car through the glass windows and are absorbed. The waves of larger wavelength emitted from inside cannot get out through the glass, but remain inside and make it terribly hot.
Correct Answer: remain in the car
Explanation:
The Whole car - the body and inside - can be considered to be a hallow conductor. During the thunderstorm the body - i.e, the outside- gets a charge but there will be no charge inside. so the inside is safe.
Correct Answer: Nuclear fission
Correct Answer: 30000 deg Cent
Explanation:
Lightning is extremely hot ? a flash can heat the air around it to temperatures five times hotter than the sun?s surface. This heat causes surrounding air to rapidly expand and vibrate, which creates the pealing thunder we hear a short time after seeing a lightning flash.
Lightning heats the surrounding air to about 30,000 degrees Centigrades.
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