Which is the unit of work?

এই অধ্যায়ের আরও প্রশ্ন

• C-04-Q108A body of 5 kg is kept at 20 cm, 30 m, 40 cm and 50 cm height respectively. At which position is its potential
• C-04-Q109From the velocity-time graph (Figure 4.09), in which part does velocity increase in proportion to time?
• C-04-Q110From the velocity-time graph (weight of car 1000 kg, peak velocity 15 m/s), the maximum kinetic energy is—
• C-04-Q111From the law of conservation of energy it is found: Which one is correct?
• C-04-Q112What type of energy is stored when a spring is stretched?
• C-04-Q113A boy of mass 40 kg and a young man of mass 60 kg start from the ground floor and reach the rooftop at the sam
• C-04-Q114A 1 kW motor lifts 2000 litres of water to a second-floor (20 m) rooftop tank in 10 minutes. The gravitational
• C-04-Q115A 1 kW motor lifts 2000 L of water to a 20 m height in 10 min. A 2 kW motor lifts 3000 L of water to a 40 m he
• C-04-Q116When an object is lifted vertically upward from the ground, the work done by the lifting force is—
• C-04-Q117If the efficiency of an electric bulb is 70%, it means—