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Question: In a thin film of oil on water, which color will appear at the center of the film if the o..
Question: If the refractive index of a medium is greater than 1, what happens to the wavelength of l..
Question: A lens has a power of +2 diopters. What is its focal length?Options: 0.5 m1 m2 m3 mCorrect..
Question: A lens forms a virtual image at a distance of 12 cm when the object is placed at 8 cm. Wha..
Question: Which of the following statements is true for a diverging lens?Options: It always forms re..
Question: In a double-slit experiment, if the distance between the slits is increased, what happens ..
Question: In a thin film of oil on water, which color will appear at the topmost layer if the thickn..
Question: In a diffraction pattern, what does the term \'order of diffraction\' refer to?Options: Th..
Question: What is the relationship between the slit width and the angular position of the first mini..
Question: In a double-slit experiment, if the distance between the slits is halved, what happens to ..
Question: In a prism, if the angle of the prism is 60 degrees, what is the minimum angle of deviatio..
Question: Which of the following describes the behavior of a Zener diode?Options: Acts as a regular ..
Question: What is the band gap energy of a typical semiconductor?Options: 0 eV1-3 eV5 eV10 eVCorrect..
Question: What is the effect of doping a semiconductor with trivalent atoms?Options: Creates n-typeC..
Question: In a photoelectric experiment, if the frequency of light is just above the threshold frequ..
Question: If a metal has a work function of 2 eV, what is the threshold wavelength for the photoelec..
Question: In a hydrogen atom, the energy levels are quantized. What is the formula for the energy of..
Question: In the photoelectric effect, increasing the intensity of light increases the:Options: Kine..
Question: Which of the following statements is true regarding the Earth\'s magnetic field?Options: I..
Question: What happens to the magnetic field inside a long solenoid when the current through it is i..
Question: What is the effect of increasing the number of turns in a solenoid on the magnetic field i..
Question: A circular loop of wire is placed in a uniform magnetic field. What happens to the induced..
Question: What is the unit of magnetic field strength as derived from the Biot-Savart Law?Options: T..
Question: Which of the following configurations will produce a uniform magnetic field using the Biot..
Question: In the context of the Biot-Savart Law, what does the symbol μ₀ represent?Options: Electric..
Question: What is the expression for the magnetic field B at a distance r from a long straight condu..
Question: If a current-carrying wire is bent into a circular loop, what is the direction of the magn..
Question: If the radius of a circular loop carrying current is doubled, what happens to the magnetic..
Question: In which direction does the magnetic field point inside a bar magnet?Options: From south t..
Question: What is the effect of increasing the number of turns in a coil on the induced EMF when the..
