Two cells having unknown e.m.f.s E, and E₂ (E₁ > E₂) are connected in potentiometer circuit so as to assist each other. The null point is obtained at 8.125 m from the highest potential end. When cell E₂ is connected so as to oppose cell E₁, the null point is obtained at 1.25 m from same end. Compare e.m.f.s. of two cells.
Q: A 18 g ball of clay traveling east at 4.0 m/s collides with a 30 g ball of clay traveling north at…
A:
Q: ..:: In Meld's experiment, the string vibrate in 4 loops when a 50 gm weight is placed in the pan of…
A: We need to compute-Weight that has to be removed from pan=?The data given as-Initial number of loops…
Q: A system efficiency 69%, must hit 10 kg of water from 20°C to 100°C within 30 minutes. If the…
A: Given: System Efficiency= 69% Temperature Difference, ∆T=100-20=80 Mass of water, m=10kg Specific…
Q: . A stretched sonometer wire is in unison with a tuning fork, when the length is increased by 4 %,…
A: We need to compute-Frequency of the fork N=?The data given as-Initial length=L1New length=L2=L1+4%L1…
Q: Why metal exhibit photoelectric effect most easily?
A: The metal exhibits photoelectric effect most easily because they have loose electrons in their outer…
Q: How much energy is needed to flip an electric dipole from being lined up with a uniform external…
A: Given: In this question, the given details are, To find the value of the energy is needed to flip an…
Q: 2- Show that the expression. v= vo + at is correct, where v and vo: speeds, a: acceleration and t:…
A:
Q: A sound source with a frequency of 650 Hz moves away from a stationary observer at a rate of 30m/s.…
A: Solution:-Given thatfrequency of sound source (f)=650 Hzspeed of source (vsource)=30 m/sstationary…
Q: ■ proton moving with a velocity 3 × 105 ms¯¹ enters a m ton angle of 30° with the fold. What will…
A:
Q: (a) The L→ K transition of an X-ray tube containing a molybdenum (Z = 42) target occurs at a…
A:
Q: : The M.I. of uniform disc about a diameter is I. Its M.I. about an axis perpendicular to its plane…
A: We need to compute-Moment of inertia of disc about axis passing through a point on rim and…
Q: An X-ray tube has nickel as target. If the wavelength differ Ka line and the short wave cut-off…
A:
Q: An electron enters a region of uniform electric field with an initial velocity of 58 km/s in the…
A: (a) Given the initial speed of the electron is u=58 km/s =58×1000m/s =58000 m/s Now given the…
Q: Given the scattering amplitude f(0) = (1/2ik) Σ(21 + 1) [e²i8 Show that
A:
Q: 1 MeV neutrons are scattered on a target. The angular distribution of the neu- trons in the…
A: Answer:
Q: 4) The crystal basis of graphene and of diamond is composed of two carbon atoms in nonequivalent…
A: Solution: The debye temperature is given by, θD=hωD2πkB,here, ωD=vs6π2NV1/3for diamond,…
Q: 1. A cylindrical aluminum rod is positioned between two enclosed volumes, each con- taining a moles…
A: Given that: Length of the rod, L=24.0 cm=0.24 mArea of cross section, A=14.0 cm2=14.0×10-4…
Q: A Boeing 737 is climbing at an increasing rate, while moving at a constant speed. Choose the correct…
A: Given Data: Let us consider the given Boeing 737 is climbing at an increasing rate , while moving…
Q: As a researcher, you are trying to obtain some 2D materials using exfoliation. You put some adhesive…
A: Given Data: Let us consider the given data, Area of surface A=2cm ×3cm . Shear strain =θ =35°.…
Q: The ball at A is kicked such that A = 30°. If it strikes the ground at B having coordinates x = 15…
A: Given Data Ball is at A kicked at an angle θ =30∘ Coordinates x =15 ft y…
Q: in The adjacent box, find The Valuesofo The charge (when The hoT Force on it is Zero (knowing that…
A:
Q: The velocity of water at the outer edge of a 56 cm diameter whirlpool, where the water level is…
A: Given: The velocity of water at the outer age, V1=3 ms When the diameter of whirlpool, d1=56 cm For…
Q: A point source of thermal neutrons is placed at the beryllium. Deduce the spatial distribution of…
A:
Q: 9 Negative pions almost at rest are absorbed b the following reaction π+d→n+n which is established…
A:
Q: Show that (a) [Jz, J+] = J+ = iJ₂
A:
Q: 3. Before a serve, Roger Federer drops a 56g tennis ball from a stationary height of 1.30 m. The…
A: We are given mass of ball. We are also given the height of ball. We first find the speed before…
Q: fu
A: Given: Kinetic energy of electron is 12.6 KeV Magnitude is 55 μT. Distance is 16 cm
Q: In a hypothetical experiment to demonstrate the photoelectric effect, a light source of variable…
A: Photoelectric effect: When the light of a particular frequency is incident on a metal surface it…
Q: 64 The masses of Ni, „Cu and 64 §4Zn ar 28 29 30 is radioactive. Detail the various po of the…
A:
Q: An antimuon with 1000 MeV total energy crosses a 10 cm long silicon target. Calculate the energy…
A: We are given the energy of antimuon. We are also given the distance it has moved inside silicon…
Q: A 18 g ball of clay traveling east at 4.0 m/s collides with a 30 g ball of clay traveling north at…
A: Given: East- Mass of clay ball is 18 g Velocity is 4 m/s After collides, North- Mass of clay ball is…
Q: Astronauts are trained for take-off in a high-speed centrifuge of 6 m radius that spins in the…
A: Solution:-Given thatR=6 mcentripetal acceleration (ac)=3.5gmass (m)=154 kg
Q: Two blocks of masses m₁ = 7.7kg and mg = 17.2kg, resting on a frictionless table, are connected to a…
A: The velocity of the center of mass once the system is released. Given, mass of block A, mA=7.7…
Q: When electric current passes through the metallic filament (Tungsten) of an incandescent light bulb,…
A: When the filament is heated by the heat energy produced in the filament. Which causes the heat on…
Q: Q8. A ceramic cube of side a = 1 cm is at temperature 420 °C it is suspended inside an evacuated box…
A:
Q: Determine the electric field at the origin due to an infinite length line of charge pl = 4 nC/m…
A: Given: Charge, ρL=4×10-9C/m Distance, x=2m and z=4m
Q: 19. In a photoemission experiment, the maximum kinetic energies of photoelectrons from metals P, Q…
A:
Q: What is the wavelength of the light when it was emitted from the galaxy when the universe was only…
A: Formula used 1+z=(lamdanow/lamda13.8). Here z is called red shift. 1. The wavelength of light when…
Q: A Baryon has quantum numbers charge, Q=1, charmless, C=1, strangeness, S=-1 and bottomness, B=0.…
A: Solution: The quarks with charm C = 1, strangeness S = -1, and bottom equals zero are the followig,…
Q: A uranium nucleus (mass 238 u), initially at rest, undergoes radioactive decay. After an alpha…
A: We have Mass of alpha mα = 4 u Mass of Uranium mu = 238u Mass of thorium mth = 234 u Speed of…
Q: - A small hockey lands 6.20 m from the bottom of th
A: Diagram is given as:
Q: A disk rotates about its central axis starting from rest and accelerate 3.80 rev/s; 80.0 revolutions…
A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…
Q: state the function of this eigen wave system and
A: Given that The particles is present in between -L/2 to L/2 We have to state the wave function and…
Q: The radioactive isotope Bismuth-210 decays to Polonium-210 with half-life of 5 days. In turn,…
A: Given: Half life to become bismuth is 143 days Initial and final mass are 100 kg and 50 kg
Q: A radioactive sample is observed for 160 days. After 160 days the amount of the sample is found to…
A: Radioactive decay is the process by which an unstable nucleus becomes stable. The rate at which this…
Q: Q2. A 70 kg skier that moves from rest at A is shown in Figure Q2. Suppose friction can be neglected…
A:
Q: In a Davisson-Germer-like diffraction experiment, electrons of kinetic energy 80 eV are in normal…
A: Given: Kinetic energy of electrons is 80 eV Angle is 29o
Q: A winch with a drum of radius R pulls à block at constant speed up a rough incline. The winch is…
A: We are given a drum pulling a block up the incline. We are given angle of inclination. We are also…
Q: If a galaxy moving away from the Earth has a speed of 1000 km/s and emits 656 nm light…
A: When there is a relativistic motion between the observer and the source the frequency of the…
Q: : The scalar product of a and b is defined to be axb a x b = |a||b| sin 0 a O |al|b| cose.b axb =…
A: Solution:-Given thatThe scalar product of a and b is defined to be
Step by step
Solved in 2 steps