In J. J. Thomson's experiment, electrons enter the space between the plates with a velocity of 108 m/s and the magnetic field is 3 x 10-³ Wb/m². If the electron beam passes undeviated, find the P.D. between the plates if the distance between them is 0.5 cm.
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Q: Ex 41: Photoelectric work function of a photosensitive material is 4.8×10-19. Calculate the…
A: To find-Threshold wavelength (λ0)=?Given-W=4.8×10-19 Jh=6.63×10-34 Jsc=3×108 m/s
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A: To find-Induced emf (e)=?Given-ϕ1=0 Wbϕ2=4×10-4 WbTime (t)=10 sec
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Q: Ex./90 A car moving at 40 km/hr passes a factory as a siren of frequency 500 Hz is sounded. What…
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Q: Ex. 3: An electron performs uniform circular motion in a region of magnetic field of induction 2 x…
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A: Induced e.m.f = d∅dt where, d∅ is the change in magnetic flux in dt time.
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Q: Ex 27: What should be the tension applied to a wire of length 0.8 m and mass 5 gm if it is to…
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Q: Q. 52 A heat engine converts 1/6th of input heat into work. When temperature of sink is reduced by…
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Q: A circular coil of radius 5.0 cm is wound with five turns and carries a current of 5.0 A. If the…
A:
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Q: Photoelectric work function of silver is 3.315 eV. Calculate the threshold frequency of silver.
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Q: Calculate threshold wavelength for given surface having threshold frequency 5 x 10¹4 Hz.
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Q: Ex. 55: Photoelectric threshold wave-length of à certain metal is 3315 A.U. Then its work function…
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Q: Find the change in magnetic flux bod associated with the coil in 25 sec. Given: Induced e.m.f. = 2 ×…
A: To find-Change in magnetic flux (dϕ)=?Given-Time (dt)=25 secInduced emf (e)=2×10-3 V
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Q: A circular coil of 100 turns and diameter 24 cm is rotated continuously in a uniform magnetic field…
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Q: Calculate threshold wavelength for given surface having threshold frequency 5 x 10¹4 Hz.
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Q: If the photoelectric work function of a metal is 5 eV, calculate the threshold wavelength for the…
A: To find-Threshold wavelength (λ0)=?Given-W=5 eV=5×1.6×10-19 J
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Q: Ex. 57: The threshold wavelength for photonmission from silver is 3800 A. Calculate the maximum…
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