Please derive the relation between effective refractive index nef and group index n, dneff ng = nefs +w

Q: spring has static equilibrium the weight is given suddenly an initial velocity of (50 cm/sec)…

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Q: 1- tind R for P=120W 4 I 4 A? %3D 2- find V for P= 64 w 4 R: 8 ?

A: given Power(P)=120 W          Current (I)=4 A formula using P=I2R, R is Resistance…

Q: Complete the Hooke's Law Experience Report by making use of the accompanying readings in the table…

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Q: i need the answer quickly

A: Given for worker A, the magnitude of the force is 850 N, the angle of elevation is 30° and the…

Q: (b)Given the shown v-t diagram (1) construct a-t and s-t diagram (1I) Using diagrams, find total…

A: Given: v-t diagram

Q: erimentalist clai ts, a heat engim R, converts 16

A: GivenQ1=300 BtuT1=900 RW=160 BtuT2=540 R

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A: Given, yx,t=0.05sin4πxcos60πt

Q: Two strings, A and B, have respective mass densities µA and µB respectively. The linear mass…

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Q: The speed of sound in water, which has a bulk modulus of 2.1x10^9 N/m^2 at zero degrees Celsius, is:

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Q: At the surface temperature of the sun T = 5800 k, diameter R = 7 * 10^8 m, and at the average…

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Q: The block start from rest moving from A in the frictionless path. find: a) The speed at B. b) The…

A: Initial Height H = 4R Initial velocity = 0

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A: Consider a uniformly charged sphere of radius R having a charged q, The energy of this sphere is…

Q: A projectile is fired with an initial velocity of 400 m/s hits a cliff 2000 meter apart determine…

A: range = V0 cos(60) x t  here V0 = 400m/s time of flight is t seconds range = 2000m thus, time (t) =…

Q: 2.21 and 2.22 Drtermite the x and y cmpowits of eacli of the forces shown. 120N 60 Ib 80 N 100N 30…

A: Given, Force vectors in x-y plane.

Q: 2. F = e²i+yj + x²yk, A. y²i2zy2j-e²k B. x²i-2y2j-e²j C. y²i-2z2j-e²k D. z²i2zy2j+e²k E.…

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Q: A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center (the figure…

A: Given information: The radius of the Ferris wheel (r) = 14.0 m The linear speed of the passengers…

Q: 8 A particle is moving along a straight line with constant acceleration from a point A to a point B,…

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Q: 43. The pnrabolic coordinates (.n) are related to the Cartesian coordinate (x, y) by x = En and y…

A: Given: x=ξηy=ξ2-η2

Q: 2. A pipe with a radius of 2 cm is connected to another pipe with a radius of1 cm. If the velocity…

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Q: A toy gun fires rubber pellets (mass = 4.1 grams) at plastic targets (mass = 95 grams). A target is…

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Q: A photographer has a camera with a focal length of 75 mm, in front of which an object is moving from…

A: Given, focal length of camera is f=75 mm

Q: The apple falls from the height of 380 m, the time of its flight and speed when it reaches the land.…

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Q: Does the laser beam from the laser device degrade when passing through a glass prism?

A: Laser beams are considered as monochromatic beams .

Q: Is a photon absorbed by atoms when its energy is less than the energy difference between orbits?

A: Given: energy of photon is less than the energy difference between the orbits To find: Is that…