An incandescent lamp filament has area 40 mm and operates at a temperature of 1127°C. Assume that all the energy furnished to the bulb is radiated from it. If the filament's emissivity is 0.83, how much power must be furnished to the bulb when it is operating
Q: A tank is filled with water to a height of 12.5 cm. The apparent depth of a needle lying at the bott...
A: We know the relation, Apparent depth=Real depthμwa 9.4 cm=12.5 cmμwa or μwa=...
Q: A monochromatic light source with a power output of 70.0 W radiates light of wavelength 680 nm unifo...
A: The Intensity at a distance r will be, I=PAI=P4πr2 Here P= power A = Area The expression For...
Q: A seismic wave is described by the equation y(x,t) = (7.00cm)cos[(6.00 πrad/cm)x+(20.0πrad/s)t]. The...
A: Given: y(x,t) = (7.00cm)cos[(6.00 πrad/cm)x+(20.0πrad/s)t] Formula used: λ=2πkf=ω2π
Q: An oil slick on water is 144 nm thick and illuminated by light of all wavelengths incident at a 30° ...
A: Answer: Given, Thickness of oil slick is, d=144nm Angle of incidence = 30° Refractive index of oil ...
Q: Two capacitors of 2 µF and 3 µF are in parallel and the group is in series with another 3µF capacito...
A: Given data, Capacitance of capacitors = 2 µF ; 3 µF ; 3 µF Voltage across the capacitors = 500 V
Q: A triangular lamina is dipped vertically in water such that its 5 m wide horizontal base is 6 m belo...
A: There is a triangular lamina which is dipped vertically in water, it is 5 m wide horizontal and base...
Q: What is the magnitude of the rpm (revolution per minute) of a speck of clay on the edge of a potter’...
A: Given that, velocity = 1.56 m/s angular acceleration a R=4.8 m/s 2 . Let, the radius of the wheel...
Q: Advanced Physics Question
A: Let the direction of current is shown in figure, where, resistance, R1=5ΩR2=10ΩR3=20ΩR4=20ΩR5=5Ω an...
Q: A girl is trying to hit the target by firing a nerf gun at a distance of 4 meters. The target is 1.2...
A: Given that:- The distance is 4 meters. The distance between the ground and target is 1.22 meters Ner...
Q: Need this with proper explanation, Thanks
A: Given, q1=54nC at r1=-63,-26nmq2=54nC at r2=31,-30nmq3=-108nC at r3=31,42nm
Q: Answer qc
A: The mass density function is given as : δ(x,y)=yx2 Refer to the figure below : The blue region is ...
Q: The percentage elongation and the percentage reduction in area depends upon Tensile strength of the ...
A: Ans is :- Ductility of the material
Q: A body weight 4.5 kgwt on the surface of the earth. How much will weight on the surface of the plane...
A: We have, 1) WE = 4.5 kgwt. 2) MP =M/9 3) RP =R/2 So we have to find : WP =?
Q: Figure Q1(b) shows a mass of 5kg, in a water tank, is connected with a spring. The mass is pulled do...
A: Given: F0=4N, m=5kg, k=10N/m, b=15kg/s (i) The differential equation of a forced damped spring-mass ...
Q: A 700-pF capacitor is connected across an ac sourcewith a voltage amplitude of 160 V and a frequency...
A: Given that,Capacitance (C) = 700 (pF) = 700×10-12 (F)Voltage amplitude (V) = 160 (V)Frequency (f) = ...
Q: An energy of 500 J is spent to increase the speed of wheel from 60 rpm to 240 rpm, Calculate the mom...
A: In this case energy spent i.e. work done gets converted into increase in kinetic energy. ω1...
Q: None
A: Solution: The binding energy of the alpha particle is given by the Einsteins formula: BE=∆mc2Here,∆m...
Q: None
A: Given, R1=5Ω, P=20 wattR2=7Ω
Q: A reservoir has a catchment area of 30 km². The maximum rainfall over the area is 2.5 cm/hour, 45% o...
A: To solve: The length of the weir.
Q: B1
A: The first sound intensity level is given as, β1=8×101 dB (or) β1=80 dB The second sound intensity le...
Q: A glass filled to the brim with cold water has a 5 cm3 of ice cube floating in it. By the time the i...
A: A physical quantity which does not depend upon the shape and size of body, we can explain it as the ...
Q: Oil of viscosity 0.05 Ns/m² is flowing between two stationary parallel plates 1 m wide and maintaine...
A: We have given data from the question : 1) Viscosity of oil, μ = 0.05 N.s/m2, 2) Width of plate, b = ...
Q: 9.9
A:
Q: When length of simple pendulum is increased by 22 cm, the period change by 20 % find the orignal len...
A: Here, T1 is initial period and L1 is initial length T2 is final period and L2 is final length ...
Q: Calculate the pressure drop (in mmHg) across the following arterial systems using Poiseuille’s Law w...
A: Concept used: Poiseuille's law is used for smooth flow of fluids. It is used to explain the pressure...
Q: A battery of emf 10 V and internal resistance 3 2 is connected to a resistor. If the current in the ...
A: We have provided with data-Emf of the battery, E=10 VInternal resistance of the battery, r=3 ohmCurr...
Q: Three capacitors each of capacitance 9 pF are connected in series. (a) What is the total capacitance...
A: We have been given that- three capacitors each of capacitance 9 pF are connected in series.
Q: B6
A: System is said to be stable if all the roots of the denominator of transfer function lies in left ha...
Q: Please provide Handwritten answer mass of 35 kg, and he pulls with a force of 75 N. b. What force wo...
A: In this case, a parallel force is applied to pull the luggage cart having some mass. We need to calc...
Q: A spring mass system consists of a spring with spring constant k and an attached block of mass m is ...
A: Solution: (a). For a spring-mass system, if there is elongation or compression in the spring, there ...
Q: Kindly solve this problem, THank you
A: Given, weight of wooden block is 10 lb height is 4100 ft and air resistance is v/7.5
Q: The wavelength of blue light in air is 4500 Å What is its frequency? If the refractive index of glas...
A: Given data- Wavelength of blue light, λb=4500 A0Refractive index of glass for blue light, μg=1.55
Q: Advanced Physics Question
A: 3) Answer : (a) Gravity force and pressure force Explanation : Euler's equation is used for ideal f...
Q: Need this with proper explanation so i can understand it well, Thanks
A: solution: (a) first of all, calculate the net electric field in the region of interest. The electri...
Q: B2
A:
Q: Need this one, if possible with explanation
A: Given data, volume charge density of the sphere = -33 pC/m3 surface charge density of the sheet = 21...
Q: Please answer Part A only, thanks.
A: According to the conservation of energy the total energy of the universe is conserved. Energy can't ...
Q: I solved part a.) Please help me solve part b.)
A: Electric field strength can be calculated by using the formula I=ε0cErms2 ...................
Q: Question 8 "Cosmic rays" are high-energy particles, typically protons, that can enter the Earth's at...
A: According to special relativity, for an observer in an inertial frame of reference, a clock that mov...
Q: Estimate the resistance of the vocal tract using the Poiseuille’s law, assuming it can be modelled a...
A: Given Length L1 = 6 cm = 0.06 m Length L2 = 3 cm = 0.03 m Length L3 = 6 cm = 0.06 m Area A1 = 5 c...
Q: In the circuit below R1 = 10 ohms, R2 =20 ohms, R3 = 10 ohms, C1 = C2 = 10 microF and V= 100 volts. ...
A:
Q: A loudspeaker with a diaphragm that vibrates at 960 Hz is traveling at 80.0 m/s directly toward a pa...
A: Given that, Speed of speaker, v=80 m Frequency, f=960 Hz Speed of sound, c=344 m/s θ=114° where F is...
Q: Calculate the volume of the Brillouin zone of the real space BCC lattice, in terms of the lattie par...
A: Brillouin zone is the locus of all those k→ values in reciprocal lattice that are Brags reflected. ...
Q: What is the ratio of deBroglie wavelengths of a 100 MeV kinetic energy proton to a 100 MeV kinetic e...
A: Given that, The kinetic energy of the proton, Ep =100MeV The Kinetic Energy of the electron, Ee = 10...
Q: Need this please with proper explanation, Thanks in Advance
A: Electric field produced due to infinite charged sheets is given by the formula E=σ2εoσ is the surfac...
Q: None
A: According to question system have two energy state, theses are, state 0 have energy, Eo = 0 state 1 ...
Q: Rate of cooling of a body is 20C/min at temperature of 600C and 10C/min, when it is at 450C. What w...
A: To answer: The temperature of the surrounding.
Q: Sodium light of wavelength 5890 A.U. is used to view an object under a microscope, The numerical ape...
A: Given data-λ=5890 A.U =5.890×10-7 mN.A.=0.12Limit of resolution d=?R.P=?
Q: 1400 N C' between two charged metal plates at right angles to the field as shown in the diagram. The...
A: Initial kinetic energy of the positive charge, T=131 J This is the total mechanical energy of the c...
Q: A rod 2 meters long, 2cm in diameter, and 5kg in mass is fixed at one end and is stricken by a force...
A: Frequency: The number of times a repeated event occurs per unit of time is known as frequency. Speed...
An incandescent lamp filament has area 40 mm and operates at a temperature of 1127°C.
Assume that all the energy furnished to the bulb is radiated from it. If the filament's emissivity
is 0.83, how much power must be furnished to the bulb when it is operating
Step by step
Solved in 2 steps
