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प्रश्न
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उत्तर
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संबंधित प्रश्न
(i) The conversion of part of the energy into an undesirable form is called ______________.
(ii) For a given height h, __________________ the length l of the inclined plane, lesser will be the effort required.
Define calorific value of a fuel.
State the energy changes in the following case while in use:
an electric bulb
Name the energy changes for the following:
electric ball
What do you understand by the kinetic energy of the body?
What kind of energy is possessed in a situation when?
A shooting arrow.
Name the two groups in which various sources of energy are classified?
State the energy changes which take place when:
Photographic film is exposed to sunlight.
Can you tell?
Describe one natural chain of transformation of energy.
A good fuel should possess:
