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Question: A double convex lens has a focal length of 10 cm. If it is made of a material with a refra..
Question: A ray of light passes from air into water at an angle of incidence of 30 degrees. What is ..
Question: What is the critical angle for a glass-air interface if the refractive index of glass is 1..
Question: A convex lens has a focal length of 20 cm. If an object is placed at a distance of 30 cm f..
Question: A concave lens has a focal length of -15 cm. What is the nature of the image formed by the..
Question: What is the primary function of a transistor?Options: RectificationAmplificationCapacitanc..
Question: In a diode, what is the region called where no charge carriers are present?Options: Conduc..
Question: What is the typical band gap of germanium?Options: 0.66 eV1.1 eV1.5 eV2.0 eVCorrect Answer..
Question: What is the majority charge carrier in a P-type semiconductor?Options: ElectronsHolesNeutr..
Question: Which type of semiconductor has an excess of electrons?Options: P-typeN-typeIntrinsicExtri..
Question: What is the energy band gap of silicon at room temperature?Options: 0.1 eV1.1 eV1.5 eV2.0 ..
Question: Which phenomenon demonstrates the particle nature of light?Options: DiffractionInterferenc..
Question: If a photon with energy 5 eV strikes a metal with work function 3 eV, what is the kinetic ..
Question: What is the relationship between the work function and the threshold frequency?Options: Φ ..
Question: In the photoelectric effect, what happens to the kinetic energy of emitted electrons if th..
Question: If the work function of a material is 2.5 eV, what is the minimum wavelength of light requ..
Question: What is the effect of increasing the frequency of incident light on the photoelectric curr..
Question: What is the maximum kinetic energy of photoelectrons emitted if the incident light has a f..
Question: If the intensity of light is doubled, what happens to the number of photoelectrons emitted..
Question: What is the threshold frequency for a metal if the work function is 4.5 eV?Options: 5.4 x ..
Question: What is the critical mass in nuclear physics?Options: Mass required for a stable nucleusMa..
Question: What is the primary force that holds the nucleus together?Options: Electromagnetic forceGr..
Question: Which of the following particles is emitted during beta decay?Options: Alpha particleBeta ..
Question: What is the half-life of a radioactive isotope?Options: Time taken for half of the sample ..
Question: In nuclear fission, what is the primary product?Options: HeliumNeutronsProtonsAlpha partic..
Question: What is the binding energy per nucleon for a stable nucleus?Options: Less than 1 MeVAbout ..
Question: What is the product of the reaction of 2-pentyne with water in the presence of sulfuric ac..
Question: Which of the following is the correct formula for an alkane?Options: C_nH_{2n}C_nH_{2n+2}C..
Question: What is the major product of the reaction between 1-butyne and H2 in the presence of a cat..
Question: What is the IUPAC name of the compound with the formula C5H12?Options: PentaneButaneHexane..
