In the photoelectric effect, stopping potential is directly related to A Intensity of incident light B Wavelength C Maximum kinetic
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Chapter 10: Modern Physics – Quantum Mechanics & Atomic Structure (Set-1)
The photoelectric effect demonstrates that light A Is purely a wave B Has particle-like properties (photons) C Is longitudinal D
Continue readingChapter 9: Optics – Interference, Diffraction & Polarization (Set-4)
Polarization of light proves that light is A Longitudinal wave B Transverse wave C Scalar wave D Sound-like wave Explanation
Continue readingChapter 9: Optics – Interference, Diffraction & Polarization (Set-3)
Diffraction of light is more pronounced when A Aperture ≫ wavelength B Aperture ≈ wavelength C Aperture = infinity D
Continue readingChapter 9: Optics – Interference, Diffraction & Polarization (Set-2)
Interference of light occurs due to A Reflection only B Refraction only C Superposition of coherent waves D Diffraction only
Continue readingChapter 9: Optics – Interference, Diffraction & Polarization (Set-1)
The law of reflection states that the angle of incidence equals the angle of A Refraction B Reflection C Deviation
Continue readingChapter 8: Magnetism, EMI, Maxwell’s Equations & EM Waves (Set-4)
Magnetic force on a current element Idl in a magnetic field is A Idl⋅B B Idl×B C B/I D Zero
Continue readingChapter 8: Magnetism, EMI, Maxwell’s Equations & EM Waves (Set-3)
The force between two parallel currents is A Always repulsive B Always attractive C Attractive if currents are in same
Continue readingChapter 8: Magnetism, EMI, Maxwell’s Equations & EM Waves (Set-2)
A current element produces a magnetic field whose magnitude is given by A Ampere’s law B Biot–Savart law C Faraday’s
Continue readingChapter 8: Magnetism, EMI, Maxwell’s Equations & EM Waves (Set-1)
The magnetic field at a distance r from a long straight current-carrying wire varies as A 1/r² B r C
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