Physics The cover of a solar cooker is made of glass because It rediates heat better than metals It reflects sun's rays It retains the heat inside by the green house effect It absorbs sun's rays It rediates heat better than metals It reflects sun's rays It retains the heat inside by the green house effect It absorbs sun's rays ANSWER DOWNLOAD EXAMIANS APP
Physics If an ordinary glass tube and a glass capillary tube are both dipped in a beaker of water, water rises in Neither Only the capillary tube Only the glass tube Both Neither Only the capillary tube Only the glass tube Both ANSWER DOWNLOAD EXAMIANS APP
Physics The wavelength of a wave is the distance between Both B & C Crest and Trough Trough and Trough Crest and Crest Both B & C Crest and Trough Trough and Trough Crest and Crest ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the cleanest source of energy? Biofuel Wind energy Fossil fuel Nuclear power Biofuel Wind energy Fossil fuel Nuclear power ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity of a body is halved its kinetic energy ________ Becomes 1/4 th Become 4 times Is also doubled Becomes half Becomes 1/4 th Become 4 times Is also doubled Becomes half ANSWER DOWNLOAD EXAMIANS APP
Physics Sound becomes hazardous noise pollution at decibels? Above 120 db Above 50 db Above 80 db Above 30 db Above 120 db Above 50 db Above 80 db Above 30 db ANSWER DOWNLOAD EXAMIANS APP
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