Physics In a Laser (say neon laser) all the atoms emit the light waves of Same phase Same amplitude All of these Same frequency Same phase Same amplitude All of these Same frequency ANSWER DOWNLOAD EXAMIANS APP
Physics The spring constant of a spring depends on its Length and its diameter Thickness, its diameter and its material Length only Material only Length and its diameter Thickness, its diameter and its material Length only Material only ANSWER DOWNLOAD EXAMIANS APP
Physics On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because: cohesion of mercury is greater than its adhesion with glass. cohesion of water is greater than its adhesion with glass. mercury is a metal. density of mercury is greater than that of water. cohesion of mercury is greater than its adhesion with glass. cohesion of water is greater than its adhesion with glass. mercury is a metal. density of mercury is greater than that of water. ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the shortest wavelength? Gamma rays Infrared rays Microwaves Radio waves Gamma rays Infrared rays Microwaves Radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics What is the escape velocity of the rocket in the earth? 13.2 km/sec 10.2 km/sec 11.2 km/sec 12.2 km/sec 13.2 km/sec 10.2 km/sec 11.2 km/sec 12.2 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Plane mirror Concave mirror Convex mirror Parabolic mirror Plane mirror Concave mirror Convex mirror Parabolic mirror ANSWER DOWNLOAD EXAMIANS APP
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