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- Question
What is the unit of resistance?
Options- A. ohm
- B. farad
- C. henry
- D. weber
- Correct Answer
- ohm
- 1. Which of the following pairing is incorrect
Options- A. Hygrometer - Water vapour content of the atmosphere
- B. Lactometer - Specific gravity of liquids
- C. Anemometer - Speed of the wind
- D. Seismograph - Earthquakes Discuss
- 2. When a barometer is rising air pressure is
Options- A. increasing
- B. decreasing
- C. constant
- D. zero Discuss
- 3. Glass is made of which material?
Options- A. Calcium carbonate
- B. Sand
- C. Silver Iodide
- D. Lime Discuss
- 4. Stars are held together by
Options- A. Gravitational forces
- B. Electrical forces
- C. Ionic forces
- D. Magnetic forces Discuss
- 5. Gravitational force is maximum at which place
Options- A. Poles
- B. Tropic of cancer
- C. Tropic of capricorn
- D. Equator Discuss
- 6. SI unit of Luminious intensity is
Options- A. Lumen
- B. Lux
- C. Candela
- D. Watt Discuss
- 7. Heat energy of an object is
Options- A. the average energy of the molecules of the object
- B. the total energy of the molecules of the object
- C. the average velocity of the molecules of the object
- D. the average potential energy of the molecules of the object Discuss
- 8. What are the particles emitted by radio active element after 3 consequtive disintegrations?
Options- A. 2 alpha 1 beta
- B. 1 alpha 1 beta
- C. 2 beta 1 alpha
- D. 2 beta 2 alpha Discuss
- 9. Which of the following is an example of continous emission spectrum?
Options- A. Spectrum of an oil frame
- B. Spectrum of a water
- C. both
- D. none Discuss
- 10. Lightning is produced when
Options- A. Similar charges of electricity rush towards each other and then get repelled
- B. clouds strike against impurities in air and the friction burns up these impurities
- C. strong opposite charges in different clouds break down the resistance offered by the intervening air
- D. water vapour produces electricity in the clouds Discuss
Physics problems
Search Results
Correct Answer: Lactometer - Specific gravity of liquids
Correct Answer: increasing
Explanation:
The device which is used to measure air pressure is called as barometer. If the barometer reading is rising, it indicates that the air pressure is increasing and if the reading is falling the air pressure is decreaing.
Correct Answer: Sand
Correct Answer: Gravitational forces
Correct Answer: Poles
Explanation:
Gravitational force is the force that binds everything at the surface of the earth. Gravitational force is maximum at Poles.
Correct Answer: Candela
Correct Answer: the total energy of the molecules of the object
Correct Answer: 2 beta 1 alpha
Correct Answer: Spectrum of an oil frame
Explanation:
Spectrum of an oil frame is an example for continuous emission spectrum
Correct Answer: strong opposite charges in different clouds break down the resistance offered by the intervening air
Explanation:
When the resistance of the air between breaks down the current flows from the positive cloud to the negative cloud in a flash which we call lightning . The difference of potential involves is very high.
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