Q: The diagram below represents a light ray reflecting from a plane mirror. What is the angle of…
A: Given: Angle of incidence, angle of light ray from the plane mirror, α = 420 To Find: Angle…
Q: Group A X= 2 mm Group B X= 4 mm Group C X= 6 mm L. 3.6(9.81) N Deltoid muscle FD 21° WU 125 mm WL WH…
A: Torque on a body is given by the cross product of force acting on it and the distance between the…
Q: Suppose a 150 mm focal length telephoto lens is being used to photograph mountains 20.0 km away. (a)…
A: The given values are, f=150 mm=150×10-3 mdo=20.0 km=20.0×103 mho=3000 m
Q: A converging lens has a focal length of 10 cm. An object is placed 12 cm from the lens. (a) Using…
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Q: A concave shaving mirror has a radius of curvature of +37.9 cm. It is positioned so that the…
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Q: Modified true or false. Write True if the statement is true. If not, write False and change the…
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Q: I R=4 cm R I=10 A R
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Q: d; d; In the picture above, you know the distance from the mirror to the image, d; = 7.1cm, and the…
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Q: 5.) 5. A horizontal ray of light strikes a mirror as shown above. The reflected light makes an angle…
A: As the incident ray is parallel to the horizontal, the angle between the incident ray and the lower…
Q: Some telephoto cameras use a mirror rather than a lens. What radius (in m) of curvature mirror is…
A: Required : Radius of curvature, R.
Q: virtual image is formed 17.0 cm from a concave mirror having a radius of curvature of 34.5 cm. (a)…
A:
Q: A concave shaving mirror has a radius of curvature of +30.8 cm. It is positioned so that the…
A: Answer:- Given Radius of curvature (R) = + 30.8 cm Focal length (F) = R/2 = (30.8)/2 = 15.4 cm…
Q: An object is placed 13.5 cm in front of a lens. An upright, virtual image is formed 25.1 cm from the…
A: Given data: Object distance, u=13.5 cm Image distance, v=25.1 cm
Q: When a jellybean is placed 19.9 cm away from the center of a concave mirror, its image is located…
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Q: Match the correct images to the appropriate description. A. В. (Choose) high precision, high…
A: Precision tells of the quality to be exact while accuracy tell quality to be correct.
Q: You are interested in purchasing a large monitor to help you taking an online class. The website…
A: Given Diagonal D = 32 inch Ratio between width and height W: H = 16:9
Q: The virtual image produced by a convex mirror is one-third thesize of the object. (a) If the object…
A: Given that the virtual image produced by a convex mirror is one third the size of the object.…
Q: A concave shaving mirror has a radius of curvature of +32.6 cm. It is positioned so that the…
A:
Q: A ladle measures 16 cm across. Would the focal point be positive or negative were I to stare into…
A: The correct option is (B) It should be negative. That is focal length is = -16cm
Q: Some telephoto cameras use a mirror rather than a lens to magnify distance objects. What radius…
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Q: A spherical concave mirror has a radius of curvature of +62 cm. What is the focal length of the…
A: Given: Radius of curvature, R = + 62 cm
Q: e figure shows a circular re - of the plane of the page. (1.50 mV-m/s)t, where %3D
A: Given data: Radius R=2.50cm=0.0250m Magnetic flux ϕE=1.50 m.V.m/st
Q: Ethanol is poured into a glass beaker. What is the critical angle for the boundary between ethanol…
A: ethanol poured into a glass beaker refractive index of ethanol, nE = 1.3 refractive index of glass,…
Q: Q1) Suppose you are going to visit your friend and you realize that when she is wearing her glasses,…
A: Given that:v1=0.36 mP=+0.8D
Q: A concave shaving mirror has a radius of curvature of +32.3 cm. It is positioned so that the…
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Q: M1 1. Two mirrors make an angle of 90 degrees with each other, as in the figure above. A ray is…
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Q: A ____________________ takes light from large, distant objects and forms an image that is small,…
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Q: You have a concave spherical mirror (the same holds if you had a convex mirror) If the value of q…
A: For the Concave mirror, the mirror formula is 1v+1u=1f where v =image distance, u =object distance,…
Q: A concave shaving mirror has a radius of curvature of +32.7 cm. It is positioned so that the…
A: Write the given values with the suitable variables. R=+32.7 cmm=1.67 Here, R is the radius of…
Q: 3. A concave makeup mirror is designed to produce a virtual image that is one and a half times the…
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Q: A mirror produces an image that is located 47.0 cm behind the mirror, when the object is located…
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Q: F=1.5N Scale 3cm=1N What the value of F in cm?
A: Given: Force (F) = 1.5 N The scale : 1 N = 3 cm
Q: State a condition when a lens is called an equiconvex or equiconcave?
A: A lens is made up of two curved surfaces which can be concave or convex surfaces.
Q: 2 points Save Ar You have a concave mirror with a focal length of 345 mm. You point the mirror at an…
A: Given Focal length f = -345 mm = -34.5 cm Image distance v = - 46.1 cm
Q: A concave shaving mirror has a radius of curvature of +36.1 cm. It is positioned so that the…
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Q: An object is held 33.5 cm from a convex mirror. It creates a virtual image of magnification 0.253.…
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Q: What is the BEST measurement for the length of the gray lower object? Express your answer using the…
A: Ruler is measured in mm (milli meter) 1mm = 10-1 cm = 10-3 m
Q: A mirror produces an image that is located 38.0 cm behind the mirror, when the object is located…
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Q: 124. A dentist w from a tooth, v magnification of used and what m
A: Since there are multiple questions posted, we will answer the first question for you. If you want…
Q: A photographic slide is to the left of a lens. The lens projects an image of the slide onto a wall…
A: Only real image can be obtained on screen so image must be real.
Q: If q=150mm and f=150mm, what is p equal?
A: Given that the image distance q=150mm, the focal length f=150mm. According to thin lens formula, the…
Q: A ray of light travelling through air encounters a 1.7-cm-thick sheet of glass at a 45 ∘ angle of…
A:
Q: A concave shaving mirror has a radius of curvature of + 39.5 cm. It is positioned so that the…
A: Given: The radius of curvature of the concave mirror is 39.5 cm. The height of the image is 2.84…
Q: (II) A shaving or makeup mirror is designed to magnify your face by a factor of 1.40 when your face…
A: Solution: Given: A shaving mirror is to be designed. It should magnify your face by a factor of 1.40…
Q: A mirror produces an image that is located 34.0 cm behind the mirror, when the object is located…
A: Given data- object distance from the mirror (u) = -9.70 cm…
Q: F=1.7N Scale 3cm = 1N What the value of F in cm?
A: Given: The value of force F = 1.7 N The scale 1 N = 3 cm
Applications Of Reflection Of Light
When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.
Sign Convention for Mirrors
A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.
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- Draw the 1/d versus Q graph. d(mm) V(V) Q(C) 1.23 10 0.77 15 0.6 20 0.5 25 0.42 v Cmeasuring amp.=0.22 x 10-6 F 2.5 kV A Uc E0 Q = CU. = / Vsupply V Dielectric material V Metal plates radius = air = 130 mmQ. The ends of the cylinder are made of conducting discs and the space between these discs are filled with an inhomogeneous ohmic medium whose conductivity o = L/(z+1). Where L is the separation distance of the discs. A d-c voltage Vo is applied across the discs as shown on the right. Determine V. a) The total resistance between the discs b) The surface charge densities on the discs c) The volume charge density and the total amount of charge between the discsConduc-Thor-s. Thor has two square prism conductors that are made of the same ohmic material and with properties indicated below. Conductor Length | Cross-Section Side Length Alpha L Beta L/2 s/4 Suppose both conductors are subject to the same potential difference AV across their length while keeping their temperatures fixed. Which of the following is the correct relation between the electric currents, Ia and IB, through Alpha and Beta? O A. Ia = 8IB O B. 8Ia = Ig O. Ia = 4I8 O D. 4Ig = Ig Clear my choice
- Fill in the table below according to measurements. V(V) Q(C) d(mm) ? 5 1.23 0.77 ? 10 15 0.6 0.5 ? 20 ? 25 0.42 Cmeasuring amp.=0.22 x 10¬6 F Vsupply V Dielectric material V Metal plates radius A. Uc - cu, - = 2.5 kV Q = CU, = E0 d air 130 тmAn electron is fired at a speed vi = 4.3 × 106 m/s and at an angle θi = 39.7° between two parallel conducting plates as shown in the figure. If s = 1.7 mm and the voltage difference between the plates is ΔV = 99.8 V, determine how close, w, the electron will get to the bottom plate. Put your answer in meters and include at 6 decimal places in your answer. Do not include units. The x-axis of the coordinate system is in the middle of the parallel plate capacitor. Round your answer to 6 decimal places.What is the number density of free electron carries in the metallic element nickel if the electrons available for electrical conduction is 1 e- per nickel atom? The atomic mass of nickel is 58.6934 g/mole and the density of nickel is 8.902 g/cm3. a. 3.32 x 1028 e- ' s /m3 b. 1.56 x 1029 e- ' s /m3 c. 5.64 x 1028 e- ' s /m3 d. 9.13 x 1028 e- ' s /m3 e. 7.63 x 1028 e- ' s /m3
- An electron is fired at a speed vi = 3.1 × 106 m/s and at an angle θi = 36.8° between two parallel conducting plates as shown in the figure. If s = 1.8 mm and the voltage difference between the plates is ΔV = 98.8 V, determine how close, w, the electron will get to the bottom plate. Put your answer in meters and include at 6 decimal places in your answer. Do not include units. The x-axis of the coordinate system is in the middle of the parallel plate capacitorA lare tat shret with mifarm surtaee charg density a-1aC/u" is in the ga-plane (ee the figure) The point A n the -atie at ,-2mn em and the point lan coor dinates a-120 m, no - 400 m Determine the potetial liere (V-Vl Select one: a. - 271 V b. + 271 V C. -172 V d. 0 V e. + 172 VIn (Figure 1), let Cı = 2.90 µF, C2 = 5.40 F, and Vab = +63.0 V.
- An electron is fired at a speed v, = 4.2 x 105 m/s and at an angle 6 = 37° between two parallel conducting plates as shown in the figure. If s = 1.8 mm and the voltage difference between the plates is AV = 99.6 V, determine how close, w, the electron will get to the bottom plate. Put your answer in meters and include at 6 decimal places in your answer. Do not include units. The x-axis of the coordinate system is in the middle of the parallel plate capacitor.z Q. The ends of the cylinder are made of conducting discs and the space between these discs are filled with an inhomogeneous ohmic medium whose conductivity o = L/z'. Where L is the separation distance of the L discs. A d-c voltage Vo is applied across the discs as shown on the right. Determine V. a) The total resistance between the discs b) The surface charge densities on the discs c) The volume charge density and the total amount of charge between the discs y N按ESC | 即可退出全屏模式 Gas insulation is important for transmission lines, outdoor insulators and Gas-insulated- Substations (GIS). Understanding the breakdown mechanisms and behaviour of insulation materials is key to the optimum design of insulation systems. The speed distribution function of electrons in a gas containing electrons, ions and atoms is controlled by the electric field strength, E, and can be expressed as fo (E, v). It satisfies the relationship of (E, v) dv=1. i) ii) Convert the above electron speed distribution function into an electron energy distribution function that satisfies the relationship f(E, ɛ) dɛ =1 where & is the electron energy and ƒ(E, ɛ) the electron energy distribution function. The electron number density is ne and the atom number density is na in the gas. The ionisation cross section of the atoms by electron impact is a function of electron energy, ɛ, and can be written as σ¡ (ɛ). Similarly, the attachment collision cross section between an electron and an…