A light wave has a wavelength of 4.25x10-7m. a) What is its frequency? b) How much energy is carried by one photon?

Q: A 4 F parallel-plate capacitor with a dielectric has a charge of 42 μC on each plate. The distance…

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Q: A straight wire segment IL→=(3.0 [A])(4 [cm] i^+3 [cm] j^) is in a uniform magnetic field B =2.0 [T]…

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Q: What is False Positive and False Negative?

A: When a scientist determines something is true when it is actually wrong, this is known as a false…

Q: At the local playground, a child on a swing has a speed of 2.22 m/s when the swing is at its lowest…

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Q: A straight conductor carrying a current i = 6.1 A splits into identical semicircular arcs as shown…

A: Curreny (I) = 6.1 A radius (r) = 8.5 cm = 0.085 m

Q: football player runs without his knee and thigh pads. Discuss what will happen to him if he…

A: When any object fall on ground with some speed has some initial momentum after falling on the ground…

Q: A proton traveling at 17.5° with respect to the direction of a magnetic field of strength 3.57 mT…

A: Answer:-  Given  Magnetic field strength (B) = 3.57 mT = 3.57 × 10-3 T  Magnetic force (FB) = 8.78 ×…

Q: An electron of mass m and charge -e moves at a constant speed v along a circular path of radius r in…

A: speed of electron = v mass of electron = m mass of particle X = M charge of electron = -e radius of…

Q: A clown at a birthday party has brought along a helium cylinder, with which he intends to fill…

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Q: If unsaturated air at 20°C were to rise, what would its temperature be at a height of 500 meters?…

A: Given: The temperature of air =20∘C Given height h = 500 m To find The temperature at a given height…

Q: 1. If the body starts from rest at A and slides 200 ft down the 30° incline, how far will it then…

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Q: The sound waves travel with speed of 230 m/s. If is wavelength is 4 cm. Find the frequency of wave?

A: Given Speed of sound wave (v) = 230 m/s Wavelength (λ) = 4 cm                             = 4 × 10-2…

Q: Problem 5:  Several ice cubes (ρi = 0.9167 g/cm3) of total volume Vi = 215 cm3 and temperature…

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Q: A uniform bar of weight 100N and length L is held horizontally using two massless and inextensible…

A: The free-body diagram of the uniform bar is shown below.

Q: Sometimes a nonreflective coating is applied to a lens, such as a camera lens. The coating has an…

A: wavelength (λ) = 549 nm

Q: long, straight wire with a circular cross-section of radius R carries a current I. Assume that the…

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Q: marble with mass ?? = 2.5 [g] moves eastward with speed ?? = 1.75 [m/s]. It then collides with…

A: marble with mass ?? = 2.5 [g] moves eastward with speed ?? = 1.75 [m/s]. It then collides with…

Q: Find the momentum A car that has a mass of 1415 kg and a velocity of 10 m/s?

A: Given data :             Velocity    =    V                 Mass    =    m          To find :…

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: Which of the following statements about electrical field lines is correct? O Electric field lines…

A: In this question they are asking about the statement which are correct about electric field In…

Q: A uniform magnetic field passes through a surface of area ?A as shown in the figure. If the area…

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Q: A single force acts on a 3.0 kg particle-like object whose position is given by x = 3.0t − 4.0t2 +…

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Q: Two infinite, straight wires carrying different amount of currents are placed as shown in the…

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Q: For the items 26 and 27, consider the following sinusoidal plot of the instantaneous voltage of an…

A: An electrical circuit that consists of a series connection of an inductor (L), a capacitor (C), and…

Q: If a body is in equilibrium the conditions that must be satisfied are (i) the body must be suspended…

A: Answer:- only ( i) ,(ii) and (iii) are correct  Because  (1) When the body must be suspended at its…

Q: Dizzy Particles. An electron of mass m and charge -e moves at a constant speed v along a circular…

A: charge on electron = -e radius of the path followed by the electron = r speed of electron = v The…

Q: a) Explain what is meant by the term fusion when describing a nuclear reaction. b) Calculate the…

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Q: A ball tossed upward has initial velocity components 30 m/s vertical, and 5 m/s horizontal. The…

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Q: One long wire lies along an x axis and carries a current of 44 A in the positive x direction. A…

A: Solution:-

Q: Which of the following is true about a planet orbiting a star in uniform circular motion? A. The…

A: a planet is orbitting a star in uniform circular motion

Q: The figure below shows three lightbulbs connected to a 120-V AC (rms) household supply voltage.…

A: The data given in the question is as follows: 1. Voltage supply, Vrms=120 V 2. Power of bulb 1 and…

Q: An airplane is flying towards a radar station at constant height of 6 km above the ground. If the…

A: Given: The height of the plane is 6 km. The decreasing rate between plane and radar is 400 km/h when…

Q: An electron (charge —e) orbits with speed 2 × 106 [m/s] around a central proton (charge +e, along a…

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Q: Suppose a truck travels 60 Kilometer in first hour and 80 Kilometer in Second hour. What is Average…

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Q: A 25.0 [cm] rod moves 5.00 [m/s]and is immersed in a magnetic field with strength of 0.50 [T]. The…

A: Given Data, Length of the rod, (l)=25.0 cm Velocity of the rod (v)=5.00 m.s Magnetic field strength…

Q: A near-sighted person has a far-point of 7.45 m. To correct their vision, what should be the focal…

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Q: A steaming pot of water is resting on a red hot burner is that convection?

A: Convection is the process of heat transfer in fluid through currents.

Q: MIMI. Consider a solenoidal coil initially carrying a time-varying current i(t) wrapped around a…

A: Magnetic flux is product of magnetic field & current.  Since magnetic field varies with current…

Q: A free electron with kinetic energy 12eV collides with a Hydrogen atom and causes the atom to be…

A: Kinetic energy of free electron,KE=12 eV Ground state energy of hydrogen atom, E0=-13.6 eV First…

Q: Consider a parallel plate capacitor with area 4 [mm²] and separation 2 [mm]. Between the plates is a…

A: Area (A) = 4 mm2plate separation (d) = 2 mm dielectric constant = 3conduction current = 8 A

Q: Which of the following statements are (or could be) true? Choose all that apply. A shoe at a…

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Q: What are the factors affecting the resistance of an electrical conductor?

A: To tell,  The factors affecting the resistance of an electric conductor  1. NATURE OF MATERIAL…

Q: uniform magnetic field passes through a surface of area A as shown in the figure. If the area vector…

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Q: 2. A charge of magnitude 8.52 x 1020 e passed through a 0.89 m long wire placed 81.23° along an…

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Q: A uniform magnetic field passes through a surface of area A as shown in the figure. If the area…

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Q: Consider a solenoidal coil initially carrying a time-varying current i(t) wrapped around a second…

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Q: 1. A. Discuss what electric current is with respect to how you understand drift velocity of moving…

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Q: Mukha mo diagram. Suppose the inductor is connected in series with a resistor and a capacitor. If…

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Q: C = 1.0 [F] and w O A. 0.1 [kn] OB. 1 [kn] O C. 10 [kn] OD. 100 [kn] What is the impedance of a…

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Q: = In the circuit shown, R₁ = 3 , R₂ = 2, R₂ = 5 , &₁ = 4 V, E₂ 10 V and 3 = 6 V. Find the currents…

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Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”