The work done in blowing a soap bubble from radius (r) to (2r) is : 12πr²T 24 лr²T (a) 4πr²T (c) 8πr²T (b) (d)
Q: The Photoelectric threshold wavelength A. Calculate its of certain material is 3000 A work function.
A: To find-Work function (W)=?Given-λ0=3000 A0=3000×10-10 mC=3×108 m/s
Q: What is the current through the zener diode? Where Vin=20v Vz=10v. + VIN ā R ww 560 Ω
A:
Q: Ex. 58: The threshold wavelength for a certain metal is 5000 ACalculate the maximum K.E. of the…
A: Given-λ0=5000 A0=5×10-7 mλ=2500 A0=2.5×10-7 mTo find-(K.E.)max=?
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A: Determine, The values of electron and hole concentrations at 300K
Q: Ex 27: The threshold wavelength for silver is O 3800 A. Calculate the photoelectric work function…
A: To find-Work function in eV (W)=?Given-λ0=3800 A0=3.8×10-7 mh=6.63×10-34 Jsc=3×108 m/s1 eV=1.6×10-19…
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Q: Calculate the reflection coefficient of the cavity reflectors for semiconductor laser with 500μm…
A: Given,L=500 μmα=820/mgth=3000/m
Q: What is the self-inductance of a coil whose reactance is 102 at 60 Hz?
A: Given that :The reactance of the inductor : XL= 10ΩOperating frequency : f = 60 HzHere we need to…
Q: Aluminum metal has a threshold frequency corresponding to wavelength 4770 A. Calculate the…
A: To find-Work function in eV (W)=?Given-λ0=4770 A0=4.77×10-7 mh=6.63×10-34 J-s
Q: U04
A: We have-Temperature, T= 200°C=473 KWe know that-Internal Energy, Einternal=∑iKi¯+Ui¯where, Ki¯ is…
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A: Given,Fs=200Nspring constant k=slope of the linek=200N0.02 m=10000 N/m
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A: To find-K.E. of rotation=?Given data-M=2 kgK=0.2 mn=5 r.p.s.ω=2πn=2π×5=10π rad/s2
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A: Solution: 1. The mathematical expression for the time period is given by, T=2πMTK From the above…
Q: The magnetic flux associated with the coil changes by 32 x 102 Wb in 20 seconds. Find the e.m.f.…
A: To find-Induced emf (e)=?Given-Magnetic flux (dϕ)=32×10-2 WbTime (dt)=20 sec
Q: Use your knowledge of sinusoidal functions to solve the following real-world situations. 1. A Ferris…
A: Given, R=20mh=3mT=40sec
Q: Ex. 4: The work function of tungsten is 4.50 eV. Calculate the speed of fastest electron ejected…
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Q: Ex. 57: The threshold wavelength for photonmission from silver is 3800 A. Calculate the maximum…
A: Given-λ0=3800 A0=3.8×10-7 mλ=2600 A0=2.6×10-7 mc=3×108 m/sh=6.63×10-34 Js1 eV=1.6×10-19 J
Q: Sunspots appear dark because they are hotter than the sur- rounding gas of the photosphere. (T/F)
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Q: The photoelectric work function of tungsten is 4.5 eV. Calculate its threshold wavelength.
A: To find-Threshold wavelength (λ0)=?Given-W0=4.5 eV=4.5×1.6×10-19 J
Q: Ex. 74 Calculate the energy radiated in one minute by a k body of s area 400 cm² when it is…
A: To find-Energy radiated (Q)=?Given-Time (t)=1 min=60 secSurface area (A)=400 cm2=400×10-4…
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Q: Assuming that C₁ Cos (wot) and C₂ Sin (wot) in 1.2 are two independent solutions of the SHO…
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Q: The forward current of a photodiode increases as the incident light increases. O false O true
A: The statement is false.
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Q: A stream of water flowing at a rate of 1.2 m³/min and moving with a velocity of magnitude 30 m/s at…
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Q: 4. What is RF magnetron sputtering? Explain Reactive sputtering?
A: Solution: Sputtering is the process of making a thin film coating on the surface/substrate. The…
Q: Use the accompanying figure to write each vector listed as a linear combination of u and v. Vectors…
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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
Q: 3. Derive the equation of motion and find the steady-state response of the system depicted in the…
A: Solution: As per the given data,
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A: Disclaimer: “Since you have asked multiple question, we will solve the first question for you. If…
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Q: 4 Ex/14: The metal rod 1 m long rotates about its one end in a plane at right angles to a horizontal…
A: To find-Induced emf (e)=?Given-length of rod (l)=1 mFrequency (n)=100 rpsMagnetic induction…
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A: Given , 5. A conservationist wishes to shoot a tranquillizer dart a monkey so that it can be…
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Q: B) Calculate the reflection coefficient of the cavity reflectors for semiconductor laser with 500μm…
A: Given,L=500μmα=820/mgth=3000/m
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Q: H.W 3. Three sheets charge of 2 nC/m² located at x = -3, 4 nC/m² located at x = 1 and -5 nC/m²…
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