Q2: hall emf of 5.4 u volt across conductor have 1 cm tall is 12 cm wide and 1 cm tall when 14A current flowing through it, the charge density of free electron in this conductor per cubic meter is 8.5 x10 28, find the magnitude of the magnetic field applied on the conductor?

Q: Which of the following is also known as pressure waves? a) Transverse waves b) Longitudinal waves c)...

A: D

Q: A transverse wave on a string is described by the wave function y(x, t) = 0.332 sin(2.25x + 88.4t) w...

A:

Q: The expectation value of which measurement cannot be calculated using the typical method? a) Energy ...

A: D

Q: Explain the 2nd question

A: Average power =∆W∆tstudent B did more work but also she/he takes more time then Aso average power of...

Q: What is the time lag between the incidence of photons and the ejection of photoelectrons? a) Greater...

A: C

Q: During Einstein’s Photoelectric Experiment, what changes are observed when the frequency of the inci...

A: C

Q: They're all correct except the one on the bottom left that is incorrect. I need to explain this some...

A: From the given graph The velocity of the lead ball is seen to be constant as the slope of the graph...

Q: two balls, m1= 2 kg and m2= 5 kg, can slide without friction on a rod. a spring with a rigidity coef...

A: Given: The mass of the ball m1 is 2 kg. The mass of the ball m2 is 5 kg. The initial velocities of t...

Q: There is an electric flux of 35.5 N-m²/IC through the square region shown in the figure. Each side o...

A:

Q: When the movable mirror of a Michaelson Interferometer is shifted through 0.0589 mm, 200 fringes cro...

A: A

Q: An observer standing by the side of a road hears the siren of an ambulance, which is moving away fro...

A: A

Q: The Energy of the particle is proportional to __________ a) n b) n-1 c) n2 d) n-2

A: C

Q: Electromagnetic wave theory of light could not explain Black Body radiations. a) True b) False

A: a

Q: As an object approaches the speed of light, it’s mass becomes _____________ a) Zero b) Double c) Rem...

A: Answer given below:

Q: P11ES You are now ready to understand more deeply the features of photoelectron spectra (Topic 9B). ...

A: (a) The Franck Condon principle has been a rule in spectroscopy and quantum chemistry which explains...

Q: The Schrödinger is a differential equation. a) True b) False

A: B

Q: 3.

A: Given: The weight of the gondola is mg=1880 lb. Diagram:

Q: Which of the following does not affect the photon? a) Magnetic or electric field b) Light waves c) G...

A: A

Q: A rod of length 5 m is moving at a speed of 0.6 c. To an observer sitting perpendicular to the direc...

A: C

Q: There is an inextensible string of linear density µ. If it is given that ω = kTμ−−√, then what is th...

A: D

Q: 3-

A:

Q: The photoelectric emission could be explained by the ____________ a) Wave nature of light b) Particl...

A: B

Q: What is the most fundamental property of wave? a) Temperature b) Pressure c) Frequency d) Wavelength

A: C

Q: Problem 3 Problem: A point charge with charge +Q is surrounded by a charged conducting shell, with t...

A:   a) charge in region I is +Qso, field in region I is,E→.ds→ =Qε0E×4πr2=Qε0E=Q4πε0r2r <ab) E→.ds→...

Q: 4. The charred bones of a sloth in a cave in Chile represent the earliest evidence of human presence...

A: Given, Bone sample specific activity =5.22 d/min.g Living organism specific activity=15.3 d/min.g t1...

Q: The work function of lithium is 2.5 eV. The maximum wavelength of light that can cause the photoelec...

A: Given: The work function of lithium W = 2.5 eV.

Q: A total charge of Q is uniformly distributed along a line, which extends along the x- axis from x=0 ...

A:            Charge on segment is given by,                                         dq = λdx = QLdx

Q: Which of the following is the characteristic of a black body? a) A perfect absorber but an imperfect...

A: C

Q: An electric field of strength E = 8200 N/C is directed along the +x-axis as shown. A proton is initi...

A:

Q: A cube with sides of proper length lo is viewed from a reference frame moving with velocity v, paral...

A: A

Q: The basic theorem/principle used to obtain mass-energy relation is _____________ a) Heisenberg’s Unc...

A: B

Q: Tunnel effect happens during nuclear fusion in stars. a) True b) False

A: A

Q: Raman effect is scattering of ________ a) Atoms b) Molecules c) Protons d) Photons

A: D

Q: Which of the following statements is true? a) Both light and sound waves can travel in the vacuum b)...

A: C

Q: The continuity equation says that

A: Equation of continuity is a verification of mass conservation. Continuity equation says that the pro...

Q: What kind of wave is formed in organ pipes? a) Transverse stationary waves b) Electromagnetic waves ...

A: D

Q: Pressure variation of a mechanical wave depends upon ___________ a) ∝Intensity b) Independent of int...

A: C

Q: Calculate the binding energy per nucleon of a boron nucleus ( 10B) in J/nucleon. (Given mass of neut...

A:

Q: When a thin plate of refractive index 1.5 is placed in the path of one of interfering beams of Micha...

A: C

Q: The wave function of a particle in a box is given by ____________ a) A sin(kx) b) A cos(kx) c) Asin(...

A: D

Q: Q#1 (a)(i)A thermal neutron has a speed v at temperature T = 300 K and kinetic energy m- 3 KT Calcul...

A: The de Broglie wavelength of a particle moving with momentum P is given by λ=hp............1where λ-...

Q: How fast does a rocket have to move relative to an observer for its length to be contracted to 95% o...

A: C

Q: W:01)

A: We have given that, ρv1(ρ)=1ρ....(ρ<a)ρv2(ρ)=1ρ2...(a<ρ<b) and we know that, ρv1=QV=Qπa2hQ=...

Q: Calculate the minimum uncertainty in the momentum of a 4He atom confined to 0.40 nm. a) 2.02 X 10-25...

A: C

Q: 1) Consider an infinite square well potential of width a shown in figure below. The potential is giv...

A:

Q: Wien’s displacement law holds good only for shorter wavelength. a) False b) True

A: B

Q: For Einstein’s relation, E2 – p2c2 = _____________ a) moc2 b) mo2c4 c) moc4 d) mo2c6

A: Option

Q: how is a cluster production by Laser ablation in physics ??

A: To answer: How is cluster production by Laser ablation?

Q: Prove that

A: To prove : [Lz,Lx] = LzLx - LxLz =i ħ Ly {Note : Instead of using cap, I have written the equations ...

Q: Use the formal definition to show that the function f(x) = x3 + 4x² is not uniformly continous on th...

A: Definition- A function f:I→IR is said to be uniformly continuous on I if corresponding to a pre-assi...