Physics For photoelectric effect to take place, the metal used as the cathode should have ________ Low resistance Low melting point Low work function High melting point Low resistance Low melting point Low work function High melting point ANSWER DOWNLOAD EXAMIANS APP
Physics Air pressure is usually highest when the air is Warm and dry Warm and moist Cool and dry Cool and moist Warm and dry Warm and moist Cool and dry Cool and moist ANSWER DOWNLOAD EXAMIANS APP
Physics If the length of a simple pendulum is halved then its period of oscillation is Increased by a factor 2 Halved Doubled Decreased by a factor 2 Increased by a factor 2 Halved Doubled Decreased by a factor 2 ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator what produces the cooling ? The sudden expansion of a compressed gas None of these The evaporation of a volatile liquid The ice which deposits on the freezer The sudden expansion of a compressed gas None of these The evaporation of a volatile liquid The ice which deposits on the freezer ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Convex mirror Plane mirror Concave mirror Parabolic mirror Convex mirror Plane mirror Concave mirror Parabolic mirror ANSWER DOWNLOAD EXAMIANS APP
Physics The centre of gravity of a sprinter during the race lies Ahead of his feet To the left side of the body Behind his feet At the centre of the body Ahead of his feet To the left side of the body Behind his feet At the centre of the body ANSWER DOWNLOAD EXAMIANS APP
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