SS3 Third Term Physics Past Questions And Answers
20 SS3 third term Physics questions with options and answers:
Question: What is the law of electromagnetic induction?
A) An electric current produces a magnetic field
B) A changing magnetic field induces an electric current
C) Like charges attract and opposite charges repel
D) The force between two charges is inversely proportional to the square of the distance
Answer: B) A changing magnetic field induces an electric current
Question: What is the term for the point in a vibrating object where the amplitude is zero?
A) Crest
B) Trough
C) Node
D) Antinode
Answer: C) Node
Question: What is the SI unit of magnetic flux?
A) Weber (Wb)
B) Tesla (T)
C) Henry (H)
D) Gauss (G)
Answer: A) Weber (Wb)
Question: What is the phenomenon where a material’s resistance decreases as its temperature decreases?
A) Superconductivity
B) Thermoelectric effect
C) Photoelectric effect
D) Joule heating
Answer: A) Superconductivity
Question: Which type of lens converges light rays to a focal point?
A) Convex lens
B) Concave lens
C) Plano-convex lens
D) Plano-concave lens
Answer: A) Convex lens
Question: What is the formula for calculating the force acting on a current-carrying conductor in a magnetic field?
A)
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Answer: A)
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Question: What is the term for the process of transferring heat through direct contact of particles?
A) Conduction
B) Convection
C) Radiation
D) Insulation
Answer: A) Conduction
Question: Which type of electromagnetic wave has the highest energy?
A) Radio waves
B) Microwaves
C) X-rays
D) Gamma rays
Answer: D) Gamma rays
Question: What is the formula for calculating the electrical power in a circuit with resistance?
A)
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Answer: A)
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Question: In the context of optics, what is the phenomenon where light separates into different colors due to its varying wavelengths?
A) Diffraction
B) Dispersion
C) Interference
D) Polarization
Answer: B) Dispersion
Question: What is the term for the rate at which an object changes its velocity?
A) Acceleration
B) Speed
C) Momentum
D) Inertia
Answer: A) Acceleration
Question: Which law of thermodynamics states that the entropy of a perfect crystal at absolute zero is zero?
A) Zeroth Law
B) First Law
C) Second Law
D) Third Law
Answer: D) Third Law
Question: What is the phenomenon where light waves combine to reinforce or cancel each other?
A) Reflection
B) Refraction
C) Diffraction
D) Interference
Answer: D) Interference
Question: What is the term for the minimum energy required to remove an electron from an atom?
A) Ionization energy
B) Electron affinity
C) Electronegativity
D) Atomic radius
Answer: A) Ionization energy
Question: Which law of thermodynamics states that energy can neither be created nor destroyed but can only be transferred or converted from one form to another?
A) Zeroth Law
B) First Law
C) Second Law
D) Third Law
Answer: B) First Law
Question: What is the relationship between the electric potential and current in a circuit element?
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D)
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Answer: A)
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Question: What is the formula for calculating the wavelength of a wave using its speed and frequency?
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B)
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Answer: A)
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Question: Which type of mirror always forms a virtual and upright image?
A) Convex mirror
B) Concave mirror
C) Plane mirror
D) Spherical mirror
Answer: C) Plane mirror
Question: What is the SI unit of inductance?
A) Farad (F)
B) Henry (H)
C) Weber (Wb)
D) Tesla (T)
Answer: B) Henry (H)
Question: What is the term for the change in velocity per unit time?
A) Speed
B) Acceleration
C) Momentum
D) Force
Answer: B) Acceleration.
