Question 241
In nuclear physics, what particle is emitted in alpha decay?Nuclear physicsNuclear decaymedium
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Question 242
What is the focal length of a converging lens if the image of an object 30 cm away is formed 60 cm on the other side?OpticsLens and mirrorshard
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Question 243
A transverse wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?Waves and oscillationsWaves and oscillationseasy
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Question 244
A vector quantity is characterized by which of the following?Scalars and vectorsScalars and vectorseasy
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Question 245
An object moves with constant velocity in a straight line. What can be said about the net force acting on it?Motion (1D and 2D)Motion (1D and 2D)easy
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Question 246
Which of the following describes the work done when a force acts perpendicular to displacement?Work, energy, powerWork, energy, powermedium
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Question 247
A mass attached to a spring oscillates with a period T. If the mass is quadrupled, what happens to the period?Simple harmonic motionSimple harmonic motionmedium
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Question 248
What causes atmospheric pressure?Pressure and fluidsPressure and fluidseasy
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Question 249
In an electrical circuit, what quantity is measured in ohms?Electricity and magnetismElectricity and magnetismeasy
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Question 250
Which nuclear particle determines the atomic number of an element?Atomic physicsAtomic physicsmedium
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