Question 41
A body moves in a circle of radius 2 m at a constant speed of 4 m/s. What is the magnitude of its centripetal acceleration?Circular motionUniform Circular Motionmedium
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Question 42
What is the period of a simple harmonic oscillator with frequency 5 Hz?Simple harmonic motionSimple Harmonic Motioneasy
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Question 43
A wire of length L and radius r stretches by an amount ΔL under a tensile force F. Which of the following expressions gives the Young's modulus Y of the material?ElasticityYoung's Modulusmedium
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Question 44
At what temperature does water boil at standard atmospheric pressure?Temperature and heatThermal Properties of Mattereasy
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Question 45
Which type of electromagnetic radiation has the shortest wavelength?Light, OpticsElectromagnetic Spectrummedium
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Question 46
Which of the following describes the process of nuclear fission?Nuclear physicsNuclear Reactionshard
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Question 47
A car accelerates uniformly from rest to 20 m/s in 5 seconds. What is the acceleration?Motion (1D and 2D)Kinematicseasy
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Question 48
Which law states that for every action, there is an equal and opposite reaction?Forces and Newton's lawsNewton's laws of motioneasy
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Question 49
A mass of 2 kg is moving with a velocity of 3 m/s. What is its kinetic energy?Work, energy, powerEnergy and workeasy
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Question 50
Which quantity remains constant in uniform circular motion?Circular motionCircular motionmedium
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