Physics (School & Undergraduate)

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Q. What is the relationship between induced emf and the resistance of the circuit?
  • A. Induced emf is independent of resistance
  • B. Higher resistance leads to higher induced emf
  • C. Lower resistance leads to higher induced emf
  • D. Induced emf is inversely proportional to resistance
Q. What is the relationship between linear momentum and angular momentum for a rolling object?
  • A. They are equal.
  • B. Angular momentum is linear momentum multiplied by radius.
  • C. Angular momentum is linear momentum divided by radius.
  • D. They are independent of each other.
Q. What is the relationship between linear velocity and angular velocity for a point on a rotating rigid body?
  • A. v = rω
  • B. v = ω/r
  • C. v = r/ω
  • D. v = ω + r
Q. What is the relationship between temperature and kinetic energy in gases?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential relationship
Q. What is the relationship between the charge (Q) and the voltage (V) across a capacitor?
  • A. Q = V/R
  • B. Q = C*V
  • C. Q = V/C
  • D. Q = R*V
Q. What is the relationship between the energy of a photon and its frequency?
  • A. Energy is directly proportional to frequency
  • B. Energy is inversely proportional to frequency
  • C. Energy is independent of frequency
  • D. Energy is proportional to the square of frequency
Q. What is the relationship between the root mean square speed (v_rms) and temperature (T) for an ideal gas?
  • A. v_rms = sqrt(3kT/m)
  • B. v_rms = sqrt(2kT/m)
  • C. v_rms = sqrt(kT/m)
  • D. v_rms = 3kT/m
Q. What is the relationship between torque and angular acceleration for a rigid body?
  • A. Torque = Moment of inertia × Angular velocity
  • B. Torque = Moment of inertia × Angular acceleration
  • C. Torque = Angular acceleration / Moment of inertia
  • D. Torque = Angular velocity × Moment of inertia
Q. What is the relationship between torque and angular acceleration?
  • A. Torque = I * α
  • B. Torque = F * r
  • C. Torque = m * a
  • D. Torque = p * v
Q. What is the relationship between voltage (V), current (I), and resistance (R) according to Ohm's Law?
  • A. V = I * R
  • B. I = V * R
  • C. R = V / I
  • D. V = R / I
Q. What is the relationship between voltage, current, and resistance in an RC circuit according to Ohm's Law?
  • A. V = I * R
  • B. I = V * R
  • C. R = V/I
  • D. Both A and C
Q. What is the role of a rectifier in a semiconductor circuit?
  • A. To convert DC to AC
  • B. To convert AC to DC
  • C. To amplify signals
  • D. To store electrical energy
Q. What is the root mean square speed of gas molecules at a temperature of 300 K for a gas with a molar mass of 0.029 kg/mol?
  • A. 300 m/s
  • B. 400 m/s
  • C. 500 m/s
  • D. 600 m/s
Q. What is the root mean square speed of nitrogen gas (N2) at 300 K? (Molar mass of N2 = 28 g/mol)
  • A. 400 m/s
  • B. 500 m/s
  • C. 600 m/s
  • D. 700 m/s
Q. What is the rotational equivalent of Newton's second law?
  • A. τ = I * α
  • B. F = m * a
  • C. W = F * d
  • D. p = m * v
Q. What is the significance of the emission spectrum of an atom?
  • A. It shows the mass of the atom
  • B. It indicates the energy levels of electrons
  • C. It determines the size of the nucleus
  • D. It reveals the temperature of the atom
Q. What is the significance of the wave-particle duality in quantum mechanics?
  • A. Particles can only behave as waves.
  • B. Waves can only behave as particles.
  • C. Particles exhibit both wave-like and particle-like properties.
  • D. There is no duality; they are separate phenomena.
Q. What is the significance of the wave-particle duality?
  • A. It shows that particles can only behave as waves.
  • B. It indicates that light and matter exhibit both wave-like and particle-like properties.
  • C. It proves that energy is quantized.
  • D. It suggests that particles can exist in multiple locations.
Q. What is the specific heat capacity of a substance if 2000 J of heat raises its temperature from 20°C to 60°C for 1 kg of the substance?
  • A. 1000 J/kg°C
  • B. 2000 J/kg°C
  • C. 500 J/kg°C
  • D. 3000 J/kg°C
Q. What is the specific heat capacity of a substance if 500 J of heat raises the temperature of 2 kg of the substance by 10°C?
  • A. 25 J/kg°C
  • B. 50 J/kg°C
  • C. 100 J/kg°C
  • D. 200 J/kg°C
Q. What is the speed of a wave if its frequency is 500 Hz and its wavelength is 2 meters?
  • A. 1000 m/s
  • B. 250 m/s
  • C. 500 m/s
  • D. 2000 m/s
Q. What is the standard unit of length in the SI system?
  • A. Centimeter
  • B. Meter
  • C. Kilometer
  • D. Millimeter
Q. What is the term for the bending of light as it passes from one medium to another?
  • A. Reflection
  • B. Refraction
  • C. Diffraction
  • D. Dispersion
Q. What is the term for the bending of waves around obstacles?
  • A. Reflection
  • B. Refraction
  • C. Diffraction
  • D. Interference
Q. What is the term for the energy required to change a substance from solid to liquid at its melting point?
  • A. Latent heat of fusion
  • B. Latent heat of vaporization
  • C. Specific heat
  • D. Thermal energy
Q. What is the term for the expansion of materials when heated?
  • A. Thermal contraction
  • B. Thermal expansion
  • C. Thermal equilibrium
  • D. Thermal conductivity
Q. What is the term for the maximum displacement of a wave from its equilibrium position?
  • A. Wavelength
  • B. Amplitude
  • C. Frequency
  • D. Period
Q. What is the term for the minimum amount of energy required to remove an electron from an atom?
  • A. Ionization energy
  • B. Binding energy
  • C. Dissociation energy
  • D. Activation energy
Q. What is the term for the minimum energy required to remove an electron from an atom?
  • A. Ionization energy
  • B. Binding energy
  • C. Dissociation energy
  • D. Activation energy
Q. What is the thermal conductivity of a material if a 1 m² area conducts 100 W of heat through a thickness of 0.1 m with a temperature difference of 50°C?
  • A. 0.2 W/m°C
  • B. 0.5 W/m°C
  • C. 1 W/m°C
  • D. 2 W/m°C
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