Briefly explain the working of a semiconductor laser.
Q: Ex 79: A bar of length 200 cm is supported at its two ends. The breadth and depth of bar are 10 cm a...
A: Given-l=200 cmb=10 cmd=2 cmm=150 gmY=4.5×1010N/m2To find-Depression produced in the bar=?
Q: 2. Do the boundary condition problem below by filling the missing values (?) and state which of the ...
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Q: Ex. 66: Calculate the velocity of sound in a gas of wavelength in which two waves 2 m and 2.05 m pro...
A: To find- Velocity of sound in gas=? Given- λ1=2 mλ2=2.05 mn1-n2=4 beats/sec
Q: The figure below shows a uniformly charged rod with total charge Q = 16.0 nC. The distance d = 10.0 ...
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Q: 22. Once fired, a bullet accelerates at 6.8 x 104 m/s2 through a rifle barrel. If the barrel is 0.8 ...
A: Given that,Acceleration : a = 6.8×104 (m/sec2)The distance traveled by bullet of the barrel : S = 0....
Q: A container is filled with a mixture of 2 fluids having densities of 3 kg/L (fluid A) and 4000 kg/m^...
A: Given: Density of fluid A nA=3 kg/L =3000 kg/m3 [∵1L=103 cm3=10-3 m3] Density of fluid B nB=400...
Q: Ex83 : What will be the length of seconds pendulum at a point where g = 980 cm/s² ?
A: To find-Length of seconds pendulumGiven-For seconds pendulumT=2 secg=980 cm/s2
Q: An electron accelerates horizontally from rest in a uniform 100 N/C electric field along they-axis. ...
A: The electron is placed in an electric field, which imparts a force on the electron in the horizontal...
Q: A shopper uses the 55-meter long walkalator that goes at 1.5 m/s from the meat section to the vegeta...
A: Given that,Velocity of walkalator : vw = 1.5 (m/sec)Velocity of shopper : vs = 1.25 (m/sec)Displacem...
Q: Show that any Operator ?̂ remains constant in time if it commute with Hamiltonian Operator
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Q: 1. Convert the following radiation units a. 3.5 µGy - mrad
A: We can solve the question by simply using the relation between nuclear radiation units "Gy" and "rad...
Q: A block of wood has a mass of 3.41 kg and a density of 668 kg/m³. It is to be loaded with lead (1.13...
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Q: The picture gives an example of horizontal, one-dimensional motion. In this case, a bead is threaded...
A: Given:
Q: Ex. 72 : A uniform copper wire of length 5 m and diameter 3 x 10m is extended by 103 m. Calculate th...
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Q: ation using 3 significant figures.
A: As per rule, allowed to answer one question at a time and post the remaining in the next submission.
Q: Help on this question about barycenter?
A: First we have to calculate mass of cylinder and block then using formula for bary center of two obje...
Q: A baseball is thrown straight up into the air with an initial velocity of 8 m/s from a height of 0.8...
A: Given that,The initial velocity : u = 8 (m/sec)Acceleration : a = -gAt maximum height, the final vel...
Q: 3. Given the pulley system with block A and a pull down motion at point Fat 3 m/s, determine the fol...
A: The pulley system is consists of 4 pulleys with block A. In the pulley problem, we assume that the m...
Q: (Figure 3) shows 3 situations in which a charge enters a uniform magnetic field B (indicated by the ...
A: Whenever a charge moves in a magnetic field, it is acted upon by forces.These force is proportional ...
Q: For any three vectors, prove that A • (B × C ) = (Ā × B) · T. Also calculate Ā • (Bx C ) for the thr...
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Q: Ex 40 : The equation of simple harmonic progressive wave is given by Y 4 sin find the displacement a...
A: To find-(1) Displacement (Y')=?(2) Velocity (V)=?Given-Y=4sinπt0.02-x75
Q: 1. Four charges, (q1, q2, q3, q4) are arranged at the corners of a square of side length L. Charge q...
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Q: Ex. 85 : A railway engine blowing whistle of frequency 620 Hz, approaches a person standing on a pla...
A: To find-Frequency of note heard by person=?n=frequencyof note of whistle=620 HzVs=velocity of source...
Q: much work was dor 750 J of work is dom ving at point C? (c)E int C2 (c)
A: Given, mass, m = 1.50 kg velocity at A, u = 3.21 m/s velocity at B, v = 1.25 m/s velocity at C, v' =...
Q: Derive the transmission and reflection coefficient using the defination of probability current densi...
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Q: Q. 16: A sphere of mass 0,5 kg and diameter 1 m rolls without sliding with a constant velocity of 5 ...
A: To find-(K.E.)rotation(K.E.)total=?Given-Mass of sphere (M)=0.5 kgDiameter (d)=1 mTherefore-radius (...
Q: 42 : An alternating e.m.f. e = 300 sin (100 t) volts is applied to pure resistance of 100 N. Calcula...
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Q: (a) In unit-vector notation, what is the sum of d = (45 m )î + (2.3 m )ĵ and B - 12.0 m i + (6.6 m )...
A: given a⇀=4.5 i + 2.3 j mb⇀=-12 i +6.6 j ma⇀+b⇀=4.5-12 i +2.3+6.6 ja⇀+b⇀=-7.5 i +8.9 j
Q: 10 : A miliammter gives a full scale deflection for 25 mA and its resistance is 20 2. How will you u...
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Q: The mass of an object is 2000 g and its volume is 0.010 cubic meters. What will be its density in kg...
A: Hey there, since you have posted multiple questions. We have answered the first one for you. Please ...
Q: Discuss briefly, what isotope is produced when Np-239 emits a beta particle?|
A: We know that, whenever any particle tries to be in its most stable state with the least energy. So, ...
Q: Two particles move along an x axis. The position of particle 1 is given by x= 7.00 + 3.00t + 4.00 (i...
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Q: A object weighing 33 kg goes up a 7 meter hill. If 231 J of thermal energy ar created how fast was t...
A: Given, Mass, m=33kg Height, h=7m According to the conservation of energy, 12mv2=mgh+231
Q: Astronomical observations of our milky way galaxy indicate that it has a mass of about 8x1011 solar ...
A: 1 solar mass = 1.989e+30 kg 1 Light year = 9.461e+15 m Given, mass of milky way is M = 8x1011 solar ...
Q: horizontal surface with uniform velocity of 2 Ex. 4 A disc of mass 40 gm, is rolling on m/s. Calcula...
A: To find- Total kinetic energyGiven-m=400 gmm=0.4 kgV=2 m/s
Q: A wooden ball of weight 196 newtons is dropped vertically from a height of 100 meters above the grou...
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Q: a End cap of area n 4.0 × 10-4 m² a 91 o = 2.0 × 10-6 C/m² (c) (d) + + + + + + + + + + + + + + Condu...
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Q: Convert the following: 24 in Hgvac to mm Hgabs and kPaa 6.5 psig to MPaa 330 mm Hggauge to mm Hgabs...
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Q: 2. In the 1-D problem shown below, a 5-MeV alpha particle is approaching a square potential barrier....
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Q: A balloon is filled with a gas whose specific volume is 0.9 m3 / kg. If the internal volume of the b...
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Q: For the Rutherford (Geiger and Marsden) experiment with 5.5 MeV alpha particles on a 1 um gold foil,...
A:
Q: (a) A 20.0 V battery supplies 1.5 A to a 12.0 N resistor. Calculate the teminal voltage of the batte...
A: Given that,Voltage of battery : V = 20 (V)Current : I = 1.5 (A)Resistor : R = 12 (Ohm)a : Here we ne...
Q: 5. a) What is the difference in energy between the J=1 and J=2 rotational energy levels for a HBr mo...
A: HBr is a heteronuclear diatomic molecule. This molecule is a rigid rotator. The energy of rotating d...
Q: Ex. 38: Two progressive waves are represented by the equation Y = a sin 2n (Vt - x) and Y = a %3D 2n...
A: To find-Phase difference=?Given-Y=asin 2πλ(Vt-x) ....(1)Y=acos2πλ(Vt-x) .......(2)
Q: Eriday Magnetism and Electromagnetism Review Sheet Name: Ashna.A 1. Draw a bar magnet and the magnet...
A: 1. In case of a bar magnet, electric field lines whether out of North pole and enter South pole. We ...
Q: circular disc about an axis passing through its perpendicular to its plane and just touchino centre ...
A: To find-M.I. of a disc about a tangent perpendicular to its plane (It)perpendicular=? Given-M.I. of ...
Q: Represent the object with a dot. Draw and label all the forces using standard force symbols
A: When an object is thrown with some initial velocity under the influence of gravity, the motion of th...
Q: (Figure 3) shows 3 situations in which a charge enters a uniform magnetic field B (indicated by the ...
A: Solution: The charge, velocity, and magnetic field are given. Let us assign the direction of these q...
Q: 5. One meter is how many centmeter?
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Q: Part A Gamora flies her spacecraft in the +r direction past the planet Xandar at 0 780c while her si...
A: Given, velocity of gamora spacecraft vg=0.780c
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