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Question: A thin lens has a focal length of 20 cm. What is the power of the lens?Options: +2.5 D+5 D..
Question: What happens to the focal length of a lens when it is immersed in a medium with a higher r..
Question: What is the relationship between the electric field and magnetic field in polarized light?..
Question: What is the effect of a second polarizer placed at 90 degrees to the first polarizer on th..
Question: Which of the following statements about circularly polarized light is true?Options: It has..
Question: If the radius of curvature of a lens is 20 cm, what is the focal length of the lens assumi..
Question: What happens to the image distance when the object is moved closer to a convex lens beyond..
Question: A lens has a power of +2.5 D. What is the focal length of the lens in meters?Options: 0.4 ..
Question: What is the magnification produced by a lens if the object distance is 20 cm and the image..
Question: What is the role of coherence in interference phenomena?Options: It determines the intensi..
Question: In a Michelson interferometer, what happens to the interference pattern if one of the mirr..
Question: What is the minimum thickness of a soap film that appears dark when illuminated by white l..
Question: In a double-slit experiment, if the screen is moved further away from the slits, what happ..
Question: If two coherent sources of light are in phase, what will be the phase difference at a poin..
Question: For destructive interference to occur in a thin film, the path difference must be equal to..
Question: What is the primary reason for the occurrence of diffraction in waves?Options: Wave interf..
Question: Which of the following best describes the effect of a larger slit width on the diffraction..
Question: In a diffraction pattern, what is the ratio of the intensity of the central maximum to tha..
Question: What is the effect of increasing the wavelength of light on the diffraction pattern produc..
Question: In the context of diffraction, what does the term \'resolution\' refer to?Options: The abi..
Question: In double-slit diffraction, what is the effect of increasing the distance between the slit..
Question: Which of the following phenomena is responsible for the formation of a rainbow?Options: Re..
Question: If a metal has a work function of 4 eV, what is the minimum wavelength of light required t..
Question: In a reaction where the rate is dependent on the concentration of two reactants, what is t..
Question: In a reaction at equilibrium, what happens to the rate of the forward and reverse reaction..
Question: If the half-life of a first-order reaction is 10 minutes, what is the rate constant k?Opti..
Question: What is the unit of the rate constant k for a first-order reaction?Options: mol/L·ss^-1mol..
Question: In a reaction mechanism, if the slow step is the rate-determining step, how does it affect..
Question: For a zero-order reaction, what is the relationship between the concentration of reactant ..
Question: In a reaction with a rate constant k, if the concentration of reactant A is doubled, how d..
