Physics If a copper wire is increased to double its length, its resistance will become Four times Half One–fourth Double Four times Half One–fourth Double 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 amount of heat which the surface of earth receives from the sun. 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 radiation from the earth in the form of long waves. It is the amount of heat which the surface of earth receives from the sun. It is the balance between incoming and outgoing radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Skids occur when the brakes are applied so hard that the front or rear wheels lose traction are called as Braking Cornering Power Blowout Braking Cornering Power Blowout ANSWER DOWNLOAD EXAMIANS APP
Physics The type of mirrors used in the headlamp of cars is Plane Parabolic concave Spherical convex Cylindrical concave Plane Parabolic concave Spherical convex Cylindrical concave ANSWER DOWNLOAD EXAMIANS APP
Physics A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be 5 R 5 R/4 R/5 4 R/5 5 R 5 R/4 R/5 4 R/5 ANSWER DOWNLOAD EXAMIANS APP
Physics A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls By his side Into his hand In front of him Behind him By his side Into his hand In front of him Behind him ANSWER DOWNLOAD EXAMIANS APP
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