Question
Which of the following countries hold the G20 Presidency
in 2022?Solution
The 20 nations met at Indonesia’s Bali Island for talks on climate action and the global impact of the war in Ukraine.
What is the work done when a force of 10 N moves an object by 5 m in the direction of the force? Â
Which of the following pair regarding sound is correct?
I. Loudness – depends on amplitude
II. Shrillness – depends on frequency
A particle is moving in a uniform circular motion with constant speed v along a circle of radius r. The acceleration-of the particle is –
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...
The Mohs scale is used to measure:
The group velocity of matter waves associated with a moving particle is:
When white light passes through a glass prism, which color deviates the least?
What is the density of an object with mass 500 g and volume 250 cm³? Â
Which of the following is not a nuclear reaction?
Two cars A and B are running at velocities of 60km per hour and 45 km per hour. What is the relative velocity of car A with respect to car B, if both ar...
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