Physics Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I.Diffusion II.Refraction III.Internal reflection I and III I, II and III I and II II and III I and III I, II and III I and II II and III ANSWER DOWNLOAD EXAMIANS APP
Physics A device used for converting a.c. into d.c. is called Rectifier Transformer Induction coil Dynamo Rectifier Transformer Induction coil Dynamo ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is indicated by the colour of a star ? Size Weight Temperature Distance Size Weight Temperature Distance ANSWER DOWNLOAD EXAMIANS APP
Physics The centre of gravity of a sprinter during the race lies Behind his feet At the centre of the body To the left side of the body Ahead of his feet Behind his feet At the centre of the body To the left side of the body Ahead of his feet ANSWER DOWNLOAD EXAMIANS APP
Physics Ventilators are provided near the ceiling of the room because These provide cross ventilation in the room These provide some sunlight in the room The exhaled warmer air rises up and goes out These do not look nice in the lower part These provide cross ventilation in the room These provide some sunlight in the room The exhaled warmer air rises up and goes out These do not look nice in the lower part ANSWER DOWNLOAD EXAMIANS APP
Physics Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s 2000 0.016 1000 0.008 2000 0.016 1000 0.008 ANSWER DOWNLOAD EXAMIANS APP
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