QI: Define Laser Q2: Draw the beam divergence from a circular aperture. Q3: How can you find the divergence angle of He-Ne Laser with beam expander? Q4: The power of Laser is (5 mw) and its intensity (1300w/m), determine the radius of the beam?
Q: A typical dense core of an interstellar gas cloud has a diameter of 0.2 pc and a mass of 2 solar mas...
A: The diameter of the gas cloud is defined as 0.2 pc. Therefore, the radius of the gas cloud will be 0...
Q: A 1.5-kg mass attached to an ideal massless spring with a spring constant of 20.0 N/m oscillates on ...
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Q: In the figure R1 = R2 = 4.26 Q and R3 = 2.74 2. Find the equivalent resistance between points Dand E...
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Q: 1- A 10KQ resistor is made of two strips connected in parallel, each one has 40µm thick, and 6mm lon...
A: Given Length L =6 mm Thickness t = 40 μmμm Width w = 0.5 mm Density ni=2.5×1019 m-3 Electron mobilit...
Q: Q.2: Calculate the longest wavelength for electron revolving in the fifth excited silicon atom, drop...
A: Energy level for a silicon atom for nth energy level⇒En = -13.6n2Z2 evHere n = principal quantum ...
Q: Give the answers for Parts a,b and c please. You will determine the energy required to launch a 700...
A: Solution: a) A geosynchronous orbit radius is calculated as follows: We know that, Orbital vel...
Q: E7BP2
A: E=7.8×104 V/m electric field between to parallel plate is perpendicular to the surface of plates and...
Q: A person swimming underwater on a bright day and looking up at the surface will see a bright circle ...
A: Total Internal Reflection Total Internal reflection is a phenomenon that occurs when a ray of light...
Q: For a spherical surface with radius 0.35 m and is charged by 29 nC, the electric Potential V at r = ...
A: Given: Radius of sphere is R=0.35m. Charge of sphere is Q=29nC. Distance where electric potential is...
Q: A copper square loop with sides 0.05 m and mass 6.74 kg can spin freely around the central axis in t...
A: Given: The mass is 6.74 kg The sides of the copper loop is 0.05 m The current is 2.1 A The magnetic ...
Q: Draw the shapes of the unit cell if the miller index is: (2,3,1). (1.2,1), (2.2.3)
A: The three miller indices are given as, (i) (2,3,1) (ii) (1,2,1) (iii) (2,2,3)
Q: Discuss friction losses using the first and second theorems of thermodynamics. How do we compensate ...
A: First law of Thermodynamics: It is the law of conservation of energy. There are two types of energy ...
Q: A08. The energy of a simple harmonic oscillator could be doubled by increasing the amplitude by a fa...
A: (A08) Introduction: Simple Harmonic Motion is defined as a motion in which the restoring force is di...
Q: In a biprism experiment, the slit is illuminated by the light of wavelength 5890 A0. theDistance bet...
A: Given data d=0.2 cmD=0.8 mλ=5890 A
Q: A hydraulic lift raises a 1370 kg automobile when a 566 N force is applied to the smaller piston. If...
A: A hydraulic lift works on the principle of Pascal's law, according to which, if a force is applied t...
Q: 6) Th ree resistors R1, R2, and R3 have the following values. RI = 2002 ± 5%, R2 - 1002 + 5%, R3-50 ...
A: The relative errors in each of the resistors can be calculated as: ∆R1 = 5100200 ? = 10 ?∆R2 = 510...
Q: Solve this calclus
A: Given : m=0.3kg u=5m/s g=9.8m/s2 s=50m B=v30 m/s...
Q: Compare and contrast the following properties for the X-rays generated from a sealed tube source and...
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Q: Physics problem involving Torque and Forces; (Design an expirement) Test an idea Your friend says t...
A: Introduction: Center of Mass in simple terms is said to be a point where the distributed mass of an ...
Q: Q.2: Calculate the longest wavelength for electron revolving in the fifth excited silicon atom, drop...
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Q: The pressure gauge shown in Figure 9.1 has a spring for which k=60 N/m and the area of the piston is...
A: Given data k=60 N/mA=0.5 cm2Pgauge=30 kPaPatm=101 kPa
Q: (b) A 3.00-kg block is set into motion up an inclined plane with an initial speed of 90.00 cm/s (the...
A: Given: The mass of the block is m = 3 kg The initial speed of the block is u = 90 cm/s The final vel...
Q: 13. If you are rock climbing and you place your feet against the wall (while holding a rope)what is ...
A: For rock climbing when a person places his feet against a wall, it is the frictional force that will...
Q: A balls is at rest, located at the origin, suddenly explores into three equal pieces. One piece is l...
A: Let m be defined as the mass of the ball. Given it explodes in three equal pieces. Therefore, the m...
Q: If the hottest star in the Carina Nebula has a surface temperature of 51,000 K, at what wavelength (...
A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is inversel...
Q: Q.2: Calculate the shortest wavelength for electron revolving in the fourth excited germanium atom, ...
A: Given that:Q=4.8×10-19 CTranstition, n1=5→n2=3→n3=2
Q: (a) Rank the following components of the interstellar medium in order of the wavelengths at which th...
A: (a). Components of the interstellar medium are detected due to the interaction between photons of pa...
Q: A particle is in a state evaluate the Ax Ap . uncertainty product
A: The uncertainty (ΔA) in any dynamic variable can be calculated with the help of mean square value (&...
Q: A point charge +Q is located on the x-axis at x- a, and a second point charge -3Q is located on the ...
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Q: Q: The water content at the field capacity is 27.2% by weight and it was 19% by weight for irrigatio...
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Q: Solve q4 and5
A: 4) The radiation emitted by a grey body is lower than that of a black body as the emissive power of ...
Q: A 190-lb man carries a 5-lb can of paint up a helical staircase that encircles a silo with radius 25...
A: Work The work done by a force in moving an object by a certain distance is given by the dot product ...
Q: otion and the brake mean I charge is 1.05 kg/m3 ar
A: Given: To find the brake specific fuel and mean effective pressure is given as,
Q: Gas clouds that form stars are pulled together by which of the following? -gravitational fields -t...
A: The correct option is A : Gravitational Fields
Q: 2. Find the group and phase velocity of a guided mode in a hollow waveguide. (i) Show that their pro...
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Q: HW: Determine the force in each member of the truss shown in Fig. below, Indicate whether the member...
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Q: How do light and matter interact? There are 4 ways: Emission, Absorption, Transmission (transparent ...
A: Emission: Electrons in an atom revolve around the massive positive charged nucleus in discrete energ...
Q: 2. A crate weighing 80 N is pulled along a horizontal surface by a force of 15 N which is applied 20...
A: Given : W=80N θ=20° F=15N μ=0.15 d=10m ...
Q: A cylinder sits on top of a cube. How far above the table's surface is the center of mass of the co...
A: We know, For two masses Centre of mass formula is:xcm=m1x1+m2x2m1+m2Let Cube be object 1 Therefore, ...
Q: Question 7.1: Measuring the Distance to the Moon The distance from Earth surface to Moon surface is:...
A: Given : d=1km R=3.8×105km The beam divergence needed for a beam to expand to 1km diam...
Q: Two horizontal beams are used to balance the masses A, B, and C, as shown in the figure. Each beam h...
A: Given: Length of each beam is 3 m. Introduction: Torque is the measure of the force that can cause a...
Q: Design the solar PV system for following parameter (i) Load estimation (ii)Estimation of number of P...
A: (a) load calculation load by 4 CFL =4*18=72 W (18 W each) load by 2 Fan=2*60=120 W (60 W each) total...
Q: A modification to an Atwood's Machine is to put one of the masses on a sloped surface (see diagam be...
A: let assume m2 block moves downward, so mass m1will move up along the inclined plane. from free body ...
Q: Calculate the binding energy (in MeV) of the last neutron in the 188O nucleus. (Hint: You should com...
A: Given mass of 178O = 16.999131 u, mass of 188O = 17.999160 u And we know mass of neutron is mn=1.00...
Q: find the lowest values of the kinetic energy of the electron and proton at which Cherenkov radiation...
A: Given: The refractive index of the medium is n = 1.6
Q: a- What is the voltage required for a current of (3 mA) between the opposite (2 x 1 mm) ends. b- Rep...
A: Ohm's Law According to Ohm's Law, the voltage across a conductor is directly proportional to the cur...
Q: The charge density on a disk of radius R = 11.8 cm is given by o = ar, with a = 1.36 µC/m³ and r mea...
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Q: The EM waves from an unknown source has a frequency range from (1 x 1013) Hz to (6 x 1013) Hz. Find ...
A: The given frequency range is ν1=1×1013 Hzν2=6×1013 HzThe bandwidth or linewidth for this frequency r...
Q: You must have heard that lightning prefers to strike the sharper metals more readily. The reason is,...
A: To answer: (a) Imagine two charged metal spheres, one bigger than the other. Also, they are placed a...
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