Physics Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre? -3.75 diopters 3.75 diopters -11.25 diopters 11.25 diopters -3.75 diopters 3.75 diopters -11.25 diopters 11.25 diopters ANSWER DOWNLOAD EXAMIANS APP
Physics Which measurement depends on gravitational force? Mass Height Weight All of these Mass Height Weight All of these ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a stone up a sloping road than to lift it vertical upwards because Work done in both is same but the rate of doing work is less in rolling. Work done in lifting the stone is equal to rolling it. Work done in rolling a stone is less than in lifting it. Work done in rolling is more than in lifting. Work done in both is same but the rate of doing work is less in rolling. Work done in lifting the stone is equal to rolling it. Work done in rolling a stone is less than in lifting it. Work done in rolling is more than in lifting. ANSWER DOWNLOAD EXAMIANS APP
Physics A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left hand. If he transfers the fish into the bucket, the total weight on the pan Increases First increases and then decreases Remains the same Decreases Increases First increases and then decreases Remains the same Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics Planets do not twinkle because Their distance from the earth does not change with time They are very far away from the earth resulting in decrease in intensity of light They emit light of a constant intensity They are nearer to earth and hence we receive a greater amount of light. Their distance from the earth does not change with time They are very far away from the earth resulting in decrease in intensity of light They emit light of a constant intensity They are nearer to earth and hence we receive a greater amount of light. ANSWER DOWNLOAD EXAMIANS APP
Physics A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be < P 2P P > P < P 2P P > P ANSWER DOWNLOAD EXAMIANS APP
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