Physics Which of the following is used for regulated electric supply ? Tunnel diode Gun diode Junction diode Zener diode Tunnel diode Gun diode Junction diode Zener diode ANSWER DOWNLOAD EXAMIANS APP
Physics In a Carnot engine when heat is taken from the source, its temperature Remains constant Increases Decreases and then remains constant Decreases Remains constant Increases Decreases and then remains constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics One light year is equal to 9 trillion miles 8 trillion miles 2 trillion miles 6 trillion miles 9 trillion miles 8 trillion miles 2 trillion miles 6 trillion miles ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the cleanest source of energy? Fossil fuel Nuclear power Wind energy Biofuel Fossil fuel Nuclear power Wind energy Biofuel ANSWER DOWNLOAD EXAMIANS APP
Physics The cover of a solar cooker is made of glass because It absorbs sun's rays It retains the heat inside by the green house effect It reflects sun's rays It rediates heat better than metals It absorbs sun's rays It retains the heat inside by the green house effect It reflects sun's rays It rediates heat better than metals ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following options correctly explains the term heat budget? It is the balance between incoming and outgoing radiation It is a mode of transfer of heat through matter by molecular activity. It is the amount of heat which the surface of earth receives from the sun. It is the radiation from the earth in the form of long waves. It is the balance between incoming and outgoing radiation It is a mode of transfer of heat through matter by molecular activity. It is the amount of heat which the surface of earth receives from the sun. It is the radiation from the earth in the form of long waves. ANSWER DOWNLOAD EXAMIANS APP
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