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What happens to the maximum kinetic energy of emitted photoelectrons if the intensity of illumination is reduced to one fourth of its original value?
What is the expression for the torque acting on a rectangular coil carrying current 'I' situated parallel to magnetic field induction 'B', having number of turns 'n' and area 'A'?
A force F = -5i + 7j + 3k ˆ acts on a particle, causing a displacement s = -3i + 2j + ak ˆ. If the work done is 14J, what is the value of 'a'?
When an electron in a hydrogen atom jumps from the fourth Bohr orbit to the second Bohr orbit, which spectral line is obtained?
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What is the condition for diffraction to occur when light of wavelength 'λ' is incident on a single slit of width 'a'?
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What is the parameter that determines the diffraction pattern when light of wavelength 'λ' is incident on a single slit of width 'a' and the distance between slit and screen is 'D'?
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What is the relation between the slit width and the width of the central maximum in a diffraction pattern if 'D' is equal to 2aλ?
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What is the angle between the change in velocity (δv) and linear velocity (v) in U.C.M. when time interval δt →0?
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What is the length of a stretched string fixed at both ends with 'm' nodes?
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What is the periodic time of a linear simple harmonic motion of amplitude 'A' when the particle is midway between its mean and extreme position?
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What is the moment of inertia of a system of three identical rods each of mass 'M' and length 'L' joined to form a symbol 'H' about one of the sides of 'H'?
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What is the phenomenon responsible for the luminous border that surrounds the profile of a mountain just before sun rises behind it?
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