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- Question
Siphon will fail to work if
Options- A. the densities of the liquid in the two vessels are equal
- B. the level of the liquid in the two vessels are at the same height
- C. both its limbs are of unequal length
- D. the temperature of the liquids in the two vessels are the same
- Correct Answer
- the level of the liquid in the two vessels are at the same height
- 1. Suitable impurities are added to a semiconductor depending on its use. This is done in order to
Options- A. increase its life
- B. enable it to withstand higher voltages
- C. increase its electrical conductivity
- D. increase its electrical resistivity Discuss
- 2. Mirage is due to
Options- A. unequal heating of different parts of the atmosphere
- B. magnetic disturbances in the atmosphere
- C. depletion of ozone layer in the atmosphere
- D. equal heating of different parts of the atmosphere Discuss
- 3. Light from the Sun reaches us in nearly
Options- A. 2 minutes
- B. 4 minutes
- C. 8 minutes
- D. 16 minutes Discuss
- 4. Radiocarbon dating technique is used to estimate the age of
Options- A. rocks
- B. monuments
- C. soil
- D. fossils Discuss
- 5. Out of the following pairs, which one does not have identical dimension?
Options- A. Moment of inertia and moment of a force
- B. Work and Torque
- C. Angular momentum and Planck's constant
- D. Impulse and Momentum Discuss
- 6. Isotopes of an element contain
Options- A. the same number of protons but different number of neutrons
- B. the same number of neutrons but different number of protons
- C. equal number of protons and electrons
- D. equal number of nucleons Discuss
- 7. Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?
Options- A. Water, iron and air
- B. Iron, air and water
- C. Air, water and iron
- D. Iron, water and air Discuss
- 8. Intensity of sound has
Options- A. an object existence
- B. a subject existence
- C. no existence
- D. both subjective and objective existence Discuss
- 9. Light year is a unit of
Options- A. time
- B. distance
- C. light
- D. intensity of light Discuss
- 10. Light travels at the fastest speed in
Options- A. glass
- B. water
- C. hydrogen
- D. vacuum Discuss
Physics problems
Search Results
Correct Answer: increase its electrical conductivity
Correct Answer: unequal heating of different parts of the atmosphere
Correct Answer: 8 minutes
Correct Answer: fossils
Correct Answer: Moment of inertia and moment of a force
Correct Answer: the same number of protons but different number of neutrons
Correct Answer: Air, water and iron
Correct Answer: an object existence
Correct Answer: distance
Correct Answer: vacuum
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