Physics What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel? 24 36 12 50 24 36 12 50 ANSWER DOWNLOAD EXAMIANS APP
Physics The energy stored in a watch spring is Potential energy Chemical energy Heat energy Kinetic energy Potential energy Chemical energy Heat energy Kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Physics In a railway track, two rails are joined end to end with a gap in between them because Accidents due to contraction in winter can be avoided Accidents due to expansion in summer can be avoided Air-gaps are necessary for bearing the weight of running train Steel can be saved Accidents due to contraction in winter can be avoided Accidents due to expansion in summer can be avoided Air-gaps are necessary for bearing the weight of running train Steel can be saved ANSWER DOWNLOAD EXAMIANS APP
Physics Kepler's law of planetary motion states that the square of the time period is proportional to the Square of the semi-major axis Semi-major axis Fourth power of the semi-major axis Cube of the semi-major axis Square of the semi-major axis Semi-major axis Fourth power of the semi-major axis Cube of the semi-major axis ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following pair is Incorrect?I. Parsec - DistanceII. Barrel - LiquidIII. Light year - Time Only III Only II Only I and III All are correct Only III Only II Only I and III All are correct ANSWER DOWNLOAD EXAMIANS APP
Physics What is the range of masses involved in the study of Physics? 10-19 kg to 1055 kg 10-30 kg to 1055 kg 10-19 kg to 1038 kg 10-30 kg to 1030 kg 10-19 kg to 1055 kg 10-30 kg to 1055 kg 10-19 kg to 1038 kg 10-30 kg to 1030 kg ANSWER DOWNLOAD EXAMIANS APP