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Start learning 50% faster. Sign in nowThe correct answer is C
A porter lifts luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage (take g = 10...
Global warming is expected to result in
What is the density of an object with mass 500 g and volume 250 cm³?
A uniform wire is bent into a circle and a battery is connected across a chord that subtends an angle of 60° at the center. What is the ratio of curren...
Which of the following is a characteristic of a conductor?
Two blocks of masses 2 kg and 4 kg are connected by a light spring (k = 300 N/m) and placed on a smooth horizontal surface. The spring is compressed by ...
A particle of mass m is placed in a potential V(x) = ax² + bx⁴. For small oscillations around equilibrium, its time period is:
Which of the following principle is used to produce low-temperatures'?
The heat required to raise the temperature of 1 kg of water by 1°C is called:
The focal length of a concave mirror is 20 cm. Where should an object be placed to get an image of the same size?
