Physics A concave lens always forms an image which is Virtual and inverted Real and inverted Virtual and erect Real and erect Virtual and inverted Real and inverted Virtual and erect Real and erect ANSWER DOWNLOAD EXAMIANS APP
Physics Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? K1k2/k1+k2 None 2k1k2/k1+k2 K1+k2/k1k2 K1k2/k1+k2 None 2k1k2/k1+k2 K1+k2/k1k2 ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Plane mirror Convex mirror Parabolic mirror Concave mirror Plane mirror Convex mirror Parabolic mirror Concave mirror ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? Expands It expands or contracts according to its diameter Contracts It expands or contracts according to its coefficient of expansion Expands It expands or contracts according to its diameter Contracts It expands or contracts according to its coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetism in materials is due to Protons at rest Circular motion of electrons All neutrons at rest Electrons at rest Protons at rest Circular motion of electrons All neutrons at rest Electrons at rest ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Air, water and iron Iron, water and air Water, iron and air Iron, air and water Air, water and iron Iron, water and air Water, iron and air Iron, air and water ANSWER DOWNLOAD EXAMIANS APP
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