A train travelling with a speed of 54 km/h can cross a pole in 6 seconds. Find the time taken by the train to cross a 210 metres long platform if the speed of train is increased by 25%.
Speed of train = 54 × 5/18 = 15 m/s Length of train = 15 × 6 = 90 metres Desired time = (210 + 90)/(1.25 × 15) = 16 seconds
Which of the following is NOT a method to improve crop yields in India?
Which of the following is a bacterial disease?
The process of elimination of water from any system is called?
______ is the SI unit of dynamic viscosity.
Which of the following statements for the given chemical reaction is true?
Fe₂ O₃ + 2Al → Al₂ O₃ + 2Fe
Which of the following is the active component of the air?
Mass of an object on earth is 12. What is its weight on moon?
The sky appears blue, because
Which of the following statement is correct?
I. Blood is a type of connective tissue
II. Bone is a type of connective tissue
Which among the following nutrients is essential for the normal functioning of the thyroid gland?
