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- Question
A dynamometer wattmeter can be used for
Options- A. Only Direct Current
- B. Only Active Current
- C. Both A & B
- D. None of the above
- Correct Answer
- Both A & B
- 1. As water is cooled from 4 deg C to 0 deg C, its density
Options- A. increases
- B. decreases
- C. remains same
- D. None of the above Discuss
- 2. The humidity of the air depends upon
Options- A. Weather
- B. Temperature
- C. Location
- D. All of the above Discuss
- 3. Blotting paper absorbs ink due to
Options- A. Capillary action phenomenon
- B. Diffusion of ink through the blotting
- C. Siphon action
- D. Viscosity of ink Discuss
- 4. Buoyancy depends on
Options- A. the mass of the liquid displaced
- B. the mass of the body
- C. the depth to which the body is immersed
- D. the shaped of the body Discuss
- 5. which is a best way to measure Ground Distance? Discuss
- 6. Number of basic SI unit is
Options- A. 4
- B. 7
- C. 6
- D. 5 Discuss
- 7. Curie is the unit of
Options- A. temparature
- B. radio activity
- C. heat
- D. energy Discuss
- 8. 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
- 9. 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
- 10. 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
Physics problems
Search Results
Correct Answer: decreases
Explanation:
As water is cooled from 4 deg C to 0 deg C, the water reaches its freezing point and starts forming ice crystals. Then the volume of that ice cubes increases and its density decreases. Hence, it is the reason that ice will float on water as ice has less density than the water.
Correct Answer: All of the above
Explanation:
Humidity means the amount of watervapour present in the atmosphere. It depends on weather, location and temperature of the place.
Correct Answer: Capillary action phenomenon
Explanation:
Blotting paper absorbs ink by the process of capillary action. The capillary action is based on the property of surface tension of liquid.
All unsized paper will absorb water. Blotting paper is not sized and made bulkier to provide capillary action for faster absorption of liquid.
Blotting paper has also been sold as a cosmetic to aid in the removal of skin oils and makeup.
Correct Answer: the mass of the liquid displaced
Explanation:
Buoyancy or Upthrust, is an upward force exerted by a fluid that opposes the weight of an immersed object.
In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid.
Correct Answer: Pace Count is a way to measure to Ground Distance Pace Count is nothing but regular single natural step of about 30 inches long
Correct Answer: 7
Correct Answer: radio activity
Correct Answer: momentum and impulse
Correct Answer: force, impulse
Correct Answer: tempered scale is used in the harmonium
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