Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 40J 20 J 200J 400J 40J 20 J 200J 400J ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following pairs of physical quantities have the same dimensions? Work and Power Work and Energy Momentum and Power Force and Power Work and Power Work and Energy Momentum and Power Force and Power ANSWER DOWNLOAD EXAMIANS APP
Physics To resolve an object in an electron microscope, The wavelength of the electrons must be greater than the diameter of the object. Both A & B The wavelength of the electrons must be close to the diameter of the object None of these The wavelength of the electrons must be greater than the diameter of the object. Both A & B The wavelength of the electrons must be close to the diameter of the object None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Choose the most appropriate answer: In which atmospheric layer are the communication satellites located? Stratosphere Troposphere Ionosphere Mesosphere Stratosphere Troposphere Ionosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Physics A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding ? 3 metres 1 metre 4 metres 2 metres 3 metres 1 metre 4 metres 2 metres ANSWER DOWNLOAD EXAMIANS APP
Physics 1 WH = 360 joules 36 joules 36000 joules 3600 joules 360 joules 36 joules 36000 joules 3600 joules ANSWER DOWNLOAD EXAMIANS APP
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