Physics A barometer is kept inside a bell jar. Air is slowly pumped out of the jar. The mercury level does not change The bell jar breaks up The mercury level starts falling The mercury level starts rising The mercury level does not change The bell jar breaks up The mercury level starts falling The mercury level starts rising ANSWER DOWNLOAD EXAMIANS APP
Physics A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct? C1 = C2 C1>C2 C1pa = C2pg C2>C1 C1 = C2 C1>C2 C1pa = C2pg C2>C1 ANSWER DOWNLOAD EXAMIANS APP
Physics Eclipses occur due to which optical phenomena? Refraction Rectilinear propagation Reflection Diffraction Refraction Rectilinear propagation Reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics Forged documents are detected by Gamma rays Beta rays Ultraviolet rays Infra-red rays Gamma rays Beta rays Ultraviolet rays Infra-red rays ANSWER DOWNLOAD EXAMIANS APP
Physics Optical Fibre technology works on which of these principles of Physics? Bernoulli's Principle Newton's law of Motion Photoelectric effect Total internal reflection of Light Bernoulli's Principle Newton's law of Motion Photoelectric effect Total internal reflection of Light ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following options correctly explains the term heat budget? It is a mode of transfer of heat through matter by molecular activity. It is the radiation from the earth in the form of long waves. It is the balance between incoming and outgoing radiation It is the amount of heat which the surface of earth receives from the sun. It is a mode of transfer of heat through matter by molecular activity. It is the radiation from the earth in the form of long waves. It is the balance between incoming and outgoing radiation It is the amount of heat which the surface of earth receives from the sun. ANSWER DOWNLOAD EXAMIANS APP
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