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Question
State Ohm’s law. If a potential difference of 10 V is applied between the two ends of a conductor, an electric current…
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Which energy is transformed to which energy in an electric motor? Why in domestic circuits, electric bulbs, electric fans, refrigerators etc., are…
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If two electric bulbs of ratings ‘240V-60 W’ and ‘240V-100W’ are connected in series, which one will shine brighter? (Filaments of both…
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What is long-sightedness? What type of lens is used to remedy this defect? [2+1]
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Draw refracted rays for the incident rays which are parallel to the principal axis of a convex lens. Mark focus (F). [3]…
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A light is incident from air medium on another medium. If the refractive index of this medium is 1.5 and the wavelength…
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By the reaction of aluminium with 40 grams of metallic oxide and high temperature, 28 grams of the metal and 25.5 grams…
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Establish the combined form of Boyle’s law and Charles’ law.
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What is meant by strong electrolyte? [2] OR What are meant by cathode and anode electrodes? [2]
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Distinguish between naphthalene and sodium chloride by two physical properties.
