Physics What is refractive index ? It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. None of above It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the product of speed of light in medium and in vacuum. It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. None of above It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the product of speed of light in medium and in vacuum. ANSWER DOWNLOAD EXAMIANS APP
Physics Soap bubble attains spherical shape due to ________ Viscosity Surface tension Pressure Inertia Viscosity Surface tension Pressure Inertia ANSWER DOWNLOAD EXAMIANS APP
Physics Matter waves are De Broglie waves Longitudinal waves Electromagnetic waves Transverse waves De Broglie waves Longitudinal waves Electromagnetic waves Transverse waves ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following waves cannot be polarised? Radio Ultrasonic Infrared Ultra violet Radio Ultrasonic Infrared Ultra violet ANSWER DOWNLOAD EXAMIANS APP
Physics Dynamo is a device for converting Heat energy into electrical energy Mechanical energy into electrical energy Chemical energy into electrical energy Magnetic energy into electrical energy Heat energy into electrical energy Mechanical energy into electrical energy Chemical energy into electrical energy Magnetic energy into electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator what produces the cooling ? The evaporation of a volatile liquid None of these The ice which deposits on the freezer The sudden expansion of a compressed gas The evaporation of a volatile liquid None of these The ice which deposits on the freezer The sudden expansion of a compressed gas ANSWER DOWNLOAD EXAMIANS APP
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