Siphon will fail to work if 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 | General Knowledge | Funtimejokes.net

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Siphon will fail to work if 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

Question:- Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to A. the heating effect of current alone B. hysteresis loss alone C. both the heating effect of current and hysteresis loss D. intense sunlight at noon

Answer:- Option C

Question:- Nuclear sizes are expressed in a unit named A. Fermi B. angstrom C. newton D. tesla

Answer:- Option A

Question:- Is fermi a unit of length?

Answer:- Fermi - A unit of length equal to 10-15 meter (one femtometer), used in nuclear physics. It is similar to the diameter of a proton.

Question:- Light year is a unit of A. time B. distance C. light D. intensity of light

Answer:- Option B

Question:- Mirage is due to 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

Answer:- Option A

Question:- Light from the Sun reaches us in nearly A. 2 minutes B. 4 minutes C. 8 minutes D. 16 minutes

Answer:- Option C

Question:- Stars appears to move from east to west because A. all stars move from east to west B. the earth rotates from west to east C. the earth rotates from east to west D. the background of the stars moves from west to east

Answer:- Option B

Question:- Pa(Pascal) is the unit for A. thrust B. pressure C. frequency D. conductivity

Answer:- Option B

Question:- Planets do not twinkle because A. they emit light of a constant intensity B. their distance from the earth does not change with time C. they are very far away from the earth resulting in decrease in intensity of light D. they are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity are not noticeable

Answer:- Option D

Question:- Metals are good conductors of electricity because A. they contain free electrons B. the atoms are lightly packed C. they have high melting point D. All of the above

Answer:- Option A

Question:- Let a thin capillary tube be replaced with another tube of insufficient length then, we find water A. will overflow B. will not rise C. depressed D. change its meniscus

Answer:- Option B

Question:- If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same A. velocity B. momentum C. acceleration D. kinetic energy

Answer:- Option B

Question:- Pick out the scalar quantity A. force B. pressure C. velocity D. acceleration

Answer:- Option B

Question:- Rectifiers are used to convert A. Direct current to Alternating current B. Alternating current to Direct current C. high voltage to low voltage D. low voltage to high voltage

Answer:- Option B