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Question: What is the nature of the image formed by a concave mirror when the object is placed beyon..
Question: In a plane mirror, if an object is placed 10 cm in front of the mirror, where will the ima..
Question: If the wavelength of light in air is 600 nm, what is its wavelength in glass (n=1.5)?Optio..
Question: A convex lens has a focal length of 15 cm. What is the power of the lens?Options: +6.67 D+..
Question: Which of the following devices is based on the principle of semiconductors?Options: Transf..
Question: What happens to the Fermi level in a p-type semiconductor compared to an intrinsic semicon..
Question: What is the role of a diode in a circuit?Options: ResistorCapacitorCurrent regulatorCurren..
Question: In a p-n junction, what is the region called where no charge carriers exist?Options: Deple..
Question: What is the main advantage of using modern analytical instrumentation in qualitative ion a..
Question: Which spectroscopy technique is best suited for identifying functional groups in organic c..
Question: Which qualitative analysis technique uses a gel medium to separate ions based on their cha..
Question: In a photoelectric experiment, if the stopping potential is increased, what does it indica..
Question: What happens to the photoelectric effect if the metal surface is cooled?Options: More elec..
Question: What is the work function of a metal if the threshold frequency is 5 x 10^14 Hz?Options: 3..
Question: What is the effect of increasing the wavelength of incident light on the photoelectric cur..
Question: What is the primary product of nuclear fusion in stars like the Sun?Options: HeliumHydroge..
Question: Which of the following is NOT a type of digital modulation?Options: Amplitude Shift Keying..
Question: What is the Nyquist rate in the context of signal sampling?Options: The minimum sampling r..
Question: Which modulation technique is most commonly used in FM radio broadcasting?Options: Amplitu..
Question: What is the energy difference between the n=1 and n=2 levels in a hydrogen atom?Options: 1..
Question: In the Bohr model of the hydrogen atom, what is the radius of the first orbit?Options: 0.0..
Question: What is the principal quantum number of an electron in the 4s orbital?Options: 2345Correct..
Question: What is the phenomenon called when electrons are emitted from a metal surface when it is e..
Question: Which particle is responsible for mediating the weak nuclear force?Options: PhotonGluonW a..
Question: What is the main reason for the stability of atomic nuclei?Options: Electromagnetic forceG..
Question: What is the energy of a photon with a frequency of 5 x 10^14 Hz? (h = 6.63 x 10^-34 J.s)Op..
Question: Which of the following statements about the uncertainty principle is true?Options: It appl..
Question: In the photoelectric effect, which of the following factors does NOT affect the photoelect..
Question: In a uniform magnetic field, the magnetic force on a charged particle is maximum when the ..
Question: A proton moves in a magnetic field and experiences a force. If the velocity of the proton ..
