Ex. 35: Determine the wavelength of photon emitted which has an energy at 2.5 eV.
Q: Briefly explain the inadequacies of classical physics and their remedies on the photoelectric effect
A: (a) The inadequacies of Classical physics. (b) Their remedies on the photoelectric effect.
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A: To find-Velocity of electron (V)=?Given-Electric field (E)=5000 V/mMagnetic field (B)=5×10-4 Wb/m2
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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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A: Given: Discharge flow rate, Q=1.2 m3/min=0.02 m3/s Velocity of water at A and B, v=30 m/s Mass of…
Q: A copper sphere has surface area 3.142 x 102 m² and its emissivity is 0.0187. Find the energy lost…
A: To find-Energy lost by sphere dQdt=?Given-A=3.142×10-2 m2e=0.0187σ=5.67×10-8 W/m2 0K4T=100+273=373…
Q: In a model of the hydrogen atom, the electron travels in circular orbits around the proton. What is…
A: Since we answer upto one question, we will answer the first question only. Please resubmit the…
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A: Given as, 15. Mass= 2M⊙.
Q: Calculate threshold wavelength for given surface having threshold frequency 5 x 10¹4 Hz.
A: To find-Threshold wavelength (λ0)=?Given-ϑ0=5×1014 Hzc=3×108 m/s
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A: Solar flares are defined as large explosion that takes place on the surface of the Sun. A solar…
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Q: B) Calculate the reflection coefficient of the cavity reflectors for semiconductor laser with 500μm…
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Q: When a voltage of 200 volt is applied across an inductance coil a current of 20 mA passes through…
A: TO find-(XL)=?Given-Erms=200 VIrms=20 mA=20×10-3 A
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: Ex. 79: Calculate the quantity of heat emitted in 5 minutes by a black cube each of side 5 cm long…
A: To find-Heat emitted (Q)=?Given-Time (t)=5 min=5×60 sec=300 secLength of each side (l)=5 cm=5×10-2…
Q: Energy of photon is 5 eV. Find the frequency and wavelength of radiation (h, C and 1 eV are given).
A: Given-E=5 eV=5×1.6×10-19E=8×10-19 Jh=6.63×10-34 J-sc=3×108 m/sTo find-Frequency (v)=?Wavelength…
Q: vector, and find a. Why is S Re
A: The instantaneous pointing vector is given as, S(r,t) =E (r,t) x H (r ,t) The equation rewritten as,…
Q: A conservationist wishes to shoot a tranquillizer dart a monkey so that it can be medically…
A: Given , 5. A conservationist wishes to shoot a tranquillizer dart a monkey so that it can be…
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Q: A tungsten light bulb filament may operate at 2900 K. What is its Fahrenheit temperature? What is…
A:
Q: State any five properties of radioactive element. Write down four main differences between…
A: Disclaimer: “Since you have asked multiple question, we will solve the first question for you. If…
Q: Two sphere made of same material have radii in the ratio 2: 1. If both the spheres are at same…
A: To find-Ratio of heat radiated=?Given-Ratio of radii r1r2=21Temperature of both bodies is same,Ratio…
Q: The first figure gives spring force F, versus position x for the spring-block arrangement of the…
A: Given,Fs=200Nspring constant k=slope of the linek=200N0.02 m=10000 N/m
Q: Because of stellar nucleosynthesis, the spectra of old stars show more heavy elements than those of…
A: Nucleosynthesis is the process by which new atomic nuclei are created from pre-existing nucleons.…
Q: Plz do it
A: Given that,The voltage of the secondary winding, Vs= 110 VoltPrimary Voltage, VP= 5.0 kVWe know the…
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…
Q: Solve the following circuit: +12V 20 Ω 502 www I1 +2V- 12 13 100 Ω www a. Write the node equation…
A:
Q: The figure gives the acceleration of a 6.0 kg particle as an applied force moves it from rest along…
A: Given, Acceleration vs position graph
Q: A tungsten light bulb filament may operate al 2900 K. What is its Fahrenheit temperature? What is…
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Q: A set of tuning forks is arranged in ascending order of frequency. Each tuning forb given 5 beats…
A: To find-Total no. of tunning forks=?Given-Tunning forks are arranged in order of increasing…
Q: Predict the time for Mars to orbit around the Sun if the orbital distance of Mars is 1.52 times of…
A: Time for Mars to orbit around the Sun. Given, Orbital radius of MarsRmars=1.52RearthOrbital period…
Q: Calculate the velocity of the electron in the first orbit in a hydrogen atom.
A: To find-Velocity of electron in 1st orbit (V1)=?Given-n=1∈0=8.85×10-12 C2/Nm2h=6.63×10-34…
Q: A hockey puck is sliding on a frictionless ice, in an eastward direction. It collides with a second…
A:
Q: Electrical power is transmitted to our homes by overhead wires strung between poles. A typical…
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Q: In an experiment to measure the charge on electron, the electrons travelling at a speed of 1.825 x…
A: To find-Magnetic induction (B)=?Given-Speed of electrons (v)=1.825×107 m/sElectric field (E)=3.2×104…
Q: Find the current through an inductance coil of inductance 2H and of negligible resistance when…
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Q: A space telescope in orbit around the Earth discovers a new planet, which is observed to move around…
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Q: Ex. 16 The wheel with 10 metallic spokes each of 0.5 m long rotated with a speed of 120 r.p.m. in a…
A: To find-Induced emf (e)=?Given-(B)=3.5×105 wb/m2No. of revolutions per minute (n)=120r.p.s…
Q: 9) A spring has a constant of 875 N/m. What hanging mass will cause this spring to stretch 4.5 m?
A: Let's Consider a vertical spring of spring constant 'k' On which we hang a mass 'm'It will stretch a…
Q: The longest wavelength of incident light that can eject photo-electrons from platinum is 1980 A.…
A: To find-Work function in eV (W)=?Given-λ0=1980 A0h=6.6×10-34 Js
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=?
Q: Ex. 57: The threshold wavelength for photonmission from silver is 3800 Å. Calculate the maximum…
A:
Q: Ex 51: The temperature of interstellar space has an average value of about 5 K. Find the rms speed…
A: Given-T=5 Kmp=1.673×10-27 kgkB=1.38×10-23 J/K
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Q: Which one of the following statements is NOT a consequence of the second law of thermodynamics? IN
A: Introduction:Let us first understand 2nd law of thermodynamics and understandvarious statements…
Q: Magnetic induction at a distance 10 m from center of circular coil of area 1m² carrying 10 A is 2 x…
A: To find-Magnetic induction (B)=?Given-A=1 m2I=10 Ax=10 m
Q: Question 1 The two graphs show the changes in energy and position as a box moves down a ramp.…
A:
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emitted which has an energy at 2.5 eV.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa5282d38-3086-4a37-b30d-e3b45f35f0b1%2F813a427a-2ec2-4386-8333-3d7d8cd6b503%2Fsn6hb9x_processed.jpeg&w=3840&q=75)
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