Question 261
An object moves in a circle of radius 2 m at constant speed 4 m/s. What is its centripetal acceleration?Circular motionCircular Motionmedium
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Question 262
Which graph best represents how the extension of a wire varies with applied force in the elastic limit?ElasticityElasticitymedium
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Question 263
A liquid’s pressure increases with depth because:Pressure and fluidsPressure in fluidsmedium
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Question 264
Which of the following describes the photoelectric effect?Light and OpticsPhotoelectric Effectmedium
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Question 265
Which particle is emitted during alpha decay?Nuclear physicsRadioactivity and Nuclear Decayhard
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Question 266
A car moves in a circle at constant speed. Which statement about the car's motion is correct?Motion (1D and 2D)Motion - Circular Motionmedium
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Question 267
What is the unit of power in the SI system?Work, energy, powerWork and Energyeasy
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Question 268
Which law explains the relationship between pressure and depth in a fluid?Pressure and fluidsPressure in Fluidseasy
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Question 269
A wave has a frequency of 50 Hz and a wavelength of 4 m. What is the speed of the wave?Waves and oscillationsWaves and Oscillationsmedium
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Question 270
In the context of optics, what is the focal length of a convex lens if an object 30 cm from the lens produces a real image 60 cm from the lens on the other side?Light, OpticsLenses and Opticshard
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